diff --git a/.github/ISSUE_TEMPLATE.txt b/.github/ISSUE_TEMPLATE.txt
index 7a66f6a2c..2fcb80abb 100644
--- a/.github/ISSUE_TEMPLATE.txt
+++ b/.github/ISSUE_TEMPLATE.txt
@@ -68,7 +68,7 @@ When sending messages to coreutils@gnu.org or bug-coreutils@gnu.org :
 
 
 <!--
-Copyright (C) 2017-2022 Free Software Foundation, Inc.
+Copyright (C) 2017-2023 Free Software Foundation, Inc.
 
 This program is free software: you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
diff --git a/.github/PULL_REQUEST_TEMPLATE.txt b/.github/PULL_REQUEST_TEMPLATE.txt
index 03ce36407..e9f9f244b 100644
--- a/.github/PULL_REQUEST_TEMPLATE.txt
+++ b/.github/PULL_REQUEST_TEMPLATE.txt
@@ -88,7 +88,7 @@ in this matter.
 
 
 <!--
-Copyright (C) 2017-2022 Free Software Foundation, Inc.
+Copyright (C) 2017-2023 Free Software Foundation, Inc.
 
 This program is free software: you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
diff --git a/.vg-suppressions b/.vg-suppressions
index a3e5496be..8383ead9b 100644
--- a/.vg-suppressions
+++ b/.vg-suppressions
@@ -1,6 +1,6 @@
 # Suppress valgrind diagnostics we don't care about.
 
-# Copyright (C) 2003-2022 Free Software Foundation, Inc.
+# Copyright (C) 2003-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/HACKING b/HACKING
index eda201809..997dd90df 100644
--- a/HACKING
+++ b/HACKING
@@ -617,7 +617,7 @@ and root only tests, is to follow these steps (requires lcov to be installed):
   xdg-open doc/coverage/index.html
 
 ========================================================================
-Copyright (C) 2009-2022 Free Software Foundation, Inc.
+Copyright (C) 2009-2023 Free Software Foundation, Inc.
 
 Permission is granted to copy, distribute and/or modify this document
 under the terms of the GNU Free Documentation License, Version 1.3 or
diff --git a/Makefile.am b/Makefile.am
index 346ed3674..ae7a0a0dc 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -1,6 +1,6 @@
 # Make coreutils.					-*-Makefile-*-
 
-# Copyright (C) 1990-2022 Free Software Foundation, Inc.
+# Copyright (C) 1990-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/NEWS b/NEWS
index 6b05c8d35..f43182757 100644
--- a/NEWS
+++ b/NEWS
@@ -5505,7 +5505,7 @@ packages, see ./old/*/NEWS.
 
 ========================================================================
 
-Copyright (C) 2001-2022 Free Software Foundation, Inc.
+Copyright (C) 2001-2023 Free Software Foundation, Inc.
 
 Permission is granted to copy, distribute and/or modify this document
 under the terms of the GNU Free Documentation License, Version 1.3 or
diff --git a/README b/README
index 954c8190c..e90940b94 100644
--- a/README
+++ b/README
@@ -130,7 +130,7 @@ note that the range specifies every single year in that closed interval.
 
 ========================================================================
 
-Copyright (C) 1998-2022 Free Software Foundation, Inc.
+Copyright (C) 1998-2023 Free Software Foundation, Inc.
 
 Permission is granted to copy, distribute and/or modify this document
 under the terms of the GNU Free Documentation License, Version 1.3 or
diff --git a/README-hacking b/README-hacking
index 60e40cabe..bc484638d 100644
--- a/README-hacking
+++ b/README-hacking
@@ -101,7 +101,7 @@ each program.  One way to do this is to use vc-dwim
 
 -----
 
-Copyright (C) 2002-2022 Free Software Foundation, Inc.
+Copyright (C) 2002-2023 Free Software Foundation, Inc.
 
 This program is free software: you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
diff --git a/README-valgrind b/README-valgrind
index 28c2f10b2..e3ae851bd 100644
--- a/README-valgrind
+++ b/README-valgrind
@@ -1,7 +1,7 @@
 #! /bin/bash
 # Convert this package for use with valgrind.
 
-# Copyright (C) 2002-2022 Free Software Foundation, Inc.
+# Copyright (C) 2002-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/TODO b/TODO
index 6c141b644..1c7f71e03 100644
--- a/TODO
+++ b/TODO
@@ -143,7 +143,7 @@ pr's use of nstrftime can make it malloc a very large (up to SIZE_MAX) buffer
 
 -----
 
-Copyright (C) 2002-2022 Free Software Foundation, Inc.
+Copyright (C) 2002-2023 Free Software Foundation, Inc.
 
 This program is free software: you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
diff --git a/bootstrap b/bootstrap
index 1f375eef2..48b16af69 100755
--- a/bootstrap
+++ b/bootstrap
@@ -4,7 +4,7 @@ scriptversion=2022-06-04.00; # UTC
 
 # Bootstrap this package from checked-out sources.
 
-# Copyright (C) 2003-2022 Free Software Foundation, Inc.
+# Copyright (C) 2003-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/bootstrap.conf b/bootstrap.conf
index 8e257a254..247734673 100644
--- a/bootstrap.conf
+++ b/bootstrap.conf
@@ -1,6 +1,6 @@
 # Bootstrap configuration.
 
-# Copyright (C) 2006-2022 Free Software Foundation, Inc.
+# Copyright (C) 2006-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/cfg.mk b/cfg.mk
index 4040d6846..179a51d1c 100644
--- a/cfg.mk
+++ b/cfg.mk
@@ -1,5 +1,5 @@
 # Customize maint.mk                           -*- makefile -*-
-# Copyright (C) 2003-2022 Free Software Foundation, Inc.
+# Copyright (C) 2003-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/configure.ac b/configure.ac
index 7e4afc96f..fc0d756dc 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,7 +1,7 @@
 # -*- autoconf -*-
 # Process this file with autoconf to produce a configure script.
 
-# Copyright (C) 1991-2022 Free Software Foundation, Inc.
+# Copyright (C) 1991-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/doc/coreutils.texi b/doc/coreutils.texi
index a49d5dd44..bd9e00de4 100644
--- a/doc/coreutils.texi
+++ b/doc/coreutils.texi
@@ -147,7 +147,7 @@
 This manual documents version @value{VERSION} of the GNU core
 utilities, including the standard programs for text and file manipulation.
 
-Copyright @copyright{} 1994--2022 Free Software Foundation, Inc.
+Copyright @copyright{} 1994--2023 Free Software Foundation, Inc.
 
 @quotation
 Permission is granted to copy, distribute and/or modify this document
diff --git a/doc/local.mk b/doc/local.mk
index e870c7f95..9714d5b18 100644
--- a/doc/local.mk
+++ b/doc/local.mk
@@ -1,7 +1,7 @@
 # Make coreutils documentation.				-*-Makefile-*-
 # This is included by the top-level Makefile.am.
 
-# Copyright (C) 1995-2022 Free Software Foundation, Inc.
+# Copyright (C) 1995-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/doc/perm.texi b/doc/perm.texi
index 559043177..45ff1d4c1 100644
--- a/doc/perm.texi
+++ b/doc/perm.texi
@@ -1,6 +1,6 @@
 @c File mode bits
 
-@c Copyright (C) 1994--2022 Free Software Foundation, Inc.
+@c Copyright (C) 1994--2023 Free Software Foundation, Inc.
 
 @c Permission is granted to copy, distribute and/or modify this document
 @c under the terms of the GNU Free Documentation License, Version 1.3 or
diff --git a/doc/sort-version.texi b/doc/sort-version.texi
index 27ef67156..72b2e3ead 100644
--- a/doc/sort-version.texi
+++ b/doc/sort-version.texi
@@ -1,6 +1,6 @@
 @c GNU Version-sort ordering documentation
 
-@c Copyright (C) 2019--2022 Free Software Foundation, Inc.
+@c Copyright (C) 2019--2023 Free Software Foundation, Inc.
 
 @c Permission is granted to copy, distribute and/or modify this document
 @c under the terms of the GNU Free Documentation License, Version 1.3 or
diff --git a/gl/lib/buffer-lcm.c b/gl/lib/buffer-lcm.c
index 392dcb753..7e3773dfb 100644
--- a/gl/lib/buffer-lcm.c
+++ b/gl/lib/buffer-lcm.c
@@ -1,6 +1,6 @@
 /* buffer-lcm.c - compute a good buffer size for dealing with two files
 
-   Copyright (C) 2002-2022 Free Software Foundation, Inc.
+   Copyright (C) 2002-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/gl/lib/cl-strtod.c b/gl/lib/cl-strtod.c
index a8c7d41c9..f6365111c 100644
--- a/gl/lib/cl-strtod.c
+++ b/gl/lib/cl-strtod.c
@@ -1,6 +1,6 @@
 /* Convert string to double in the current locale, falling back on the C locale.
 
-   Copyright 2019-2022 Free Software Foundation, Inc.
+   Copyright 2019-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/gl/lib/fadvise.c b/gl/lib/fadvise.c
index c7335aa47..79e6ac75b 100644
--- a/gl/lib/fadvise.c
+++ b/gl/lib/fadvise.c
@@ -1,5 +1,5 @@
 /* Declare an access pattern hint for files.
-   Copyright (C) 2010-2022 Free Software Foundation, Inc.
+   Copyright (C) 2010-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/gl/lib/fadvise.h b/gl/lib/fadvise.h
index 437788d7d..276a8837d 100644
--- a/gl/lib/fadvise.h
+++ b/gl/lib/fadvise.h
@@ -1,5 +1,5 @@
 /* Declare an access pattern hint for files.
-   Copyright (C) 2010-2022 Free Software Foundation, Inc.
+   Copyright (C) 2010-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/gl/lib/fd-reopen.c b/gl/lib/fd-reopen.c
index 9c22f1196..f5150778f 100644
--- a/gl/lib/fd-reopen.c
+++ b/gl/lib/fd-reopen.c
@@ -1,6 +1,6 @@
 /* Invoke open, but return either a desired file descriptor or -1.
 
-   Copyright (C) 2005-2022 Free Software Foundation, Inc.
+   Copyright (C) 2005-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/gl/lib/fd-reopen.h b/gl/lib/fd-reopen.h
index 2317e8bf3..979847599 100644
--- a/gl/lib/fd-reopen.h
+++ b/gl/lib/fd-reopen.h
@@ -1,6 +1,6 @@
 /* Invoke open, but return either a desired file descriptor or -1.
 
-   Copyright (C) 2005-2022 Free Software Foundation, Inc.
+   Copyright (C) 2005-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/gl/lib/heap.c b/gl/lib/heap.c
index 30584adca..520e7fd45 100644
--- a/gl/lib/heap.c
+++ b/gl/lib/heap.c
@@ -1,6 +1,6 @@
 /* Barebones heap implementation supporting only insert and pop.
 
-   Copyright (C) 2010-2022 Free Software Foundation, Inc.
+   Copyright (C) 2010-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/gl/lib/heap.h b/gl/lib/heap.h
index 895c375fc..9ae9308e4 100644
--- a/gl/lib/heap.h
+++ b/gl/lib/heap.h
@@ -1,6 +1,6 @@
 /* Barebones heap implementation supporting only insert and pop.
 
-   Copyright (C) 2010-2022 Free Software Foundation, Inc.
+   Copyright (C) 2010-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/gl/lib/mbsalign.c b/gl/lib/mbsalign.c
index 484829f19..0ccf08288 100644
--- a/gl/lib/mbsalign.c
+++ b/gl/lib/mbsalign.c
@@ -1,5 +1,5 @@
 /* Align/Truncate a string in a given screen width
-   Copyright (C) 2009-2022 Free Software Foundation, Inc.
+   Copyright (C) 2009-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/gl/lib/mbsalign.h b/gl/lib/mbsalign.h
index 2b9f976fa..37a9af578 100644
--- a/gl/lib/mbsalign.h
+++ b/gl/lib/mbsalign.h
@@ -1,5 +1,5 @@
 /* Align/Truncate a string in a given screen width
-   Copyright (C) 2009-2022 Free Software Foundation, Inc.
+   Copyright (C) 2009-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/gl/lib/rand-isaac.c b/gl/lib/rand-isaac.c
index 9a3268ed3..fe4cecf5a 100644
--- a/gl/lib/rand-isaac.c
+++ b/gl/lib/rand-isaac.c
@@ -1,6 +1,6 @@
 /* Bob Jenkins's cryptographic random number generators, ISAAC and ISAAC64.
 
-   Copyright (C) 1999-2022 Free Software Foundation, Inc.
+   Copyright (C) 1999-2023 Free Software Foundation, Inc.
    Copyright (C) 1997, 1998, 1999 Colin Plumb.
 
    This program is free software: you can redistribute it and/or modify
diff --git a/gl/lib/rand-isaac.h b/gl/lib/rand-isaac.h
index 3c443be55..985766605 100644
--- a/gl/lib/rand-isaac.h
+++ b/gl/lib/rand-isaac.h
@@ -1,6 +1,6 @@
 /* Bob Jenkins's cryptographic random number generators, ISAAC and ISAAC64.
 
-   Copyright (C) 1999-2022 Free Software Foundation, Inc.
+   Copyright (C) 1999-2023 Free Software Foundation, Inc.
    Copyright (C) 1997, 1998, 1999 Colin Plumb.
 
    This program is free software: you can redistribute it and/or modify
diff --git a/gl/lib/randint.c b/gl/lib/randint.c
index 02c04edd8..55ec2b24e 100644
--- a/gl/lib/randint.c
+++ b/gl/lib/randint.c
@@ -1,6 +1,6 @@
 /* Generate random integers.
 
-   Copyright (C) 2006-2022 Free Software Foundation, Inc.
+   Copyright (C) 2006-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/gl/lib/randint.h b/gl/lib/randint.h
index 775d1b775..1c774cfbf 100644
--- a/gl/lib/randint.h
+++ b/gl/lib/randint.h
@@ -1,6 +1,6 @@
 /* Generate random integers.
 
-   Copyright (C) 2006-2022 Free Software Foundation, Inc.
+   Copyright (C) 2006-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/gl/lib/randperm.c b/gl/lib/randperm.c
index 380a95227..f935946a6 100644
--- a/gl/lib/randperm.c
+++ b/gl/lib/randperm.c
@@ -1,6 +1,6 @@
 /* Generate random permutations.
 
-   Copyright (C) 2006-2022 Free Software Foundation, Inc.
+   Copyright (C) 2006-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/gl/lib/randread.c b/gl/lib/randread.c
index 54d2e935b..4989d666f 100644
--- a/gl/lib/randread.c
+++ b/gl/lib/randread.c
@@ -1,6 +1,6 @@
 /* Generate buffers of random data.
 
-   Copyright (C) 2006-2022 Free Software Foundation, Inc.
+   Copyright (C) 2006-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/gl/lib/randread.h b/gl/lib/randread.h
index a9e4f596c..9bd1303f1 100644
--- a/gl/lib/randread.h
+++ b/gl/lib/randread.h
@@ -1,6 +1,6 @@
 /* Generate buffers of random data.
 
-   Copyright (C) 2006-2022 Free Software Foundation, Inc.
+   Copyright (C) 2006-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/gl/lib/root-dev-ino.c b/gl/lib/root-dev-ino.c
index cfa9a1d3b..04e07f18c 100644
--- a/gl/lib/root-dev-ino.c
+++ b/gl/lib/root-dev-ino.c
@@ -1,5 +1,5 @@
 /* root-dev-ino.c -- get the device and inode numbers for '/'.
-   Copyright (C) 2003-2022 Free Software Foundation, Inc.
+   Copyright (C) 2003-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/gl/lib/root-dev-ino.h b/gl/lib/root-dev-ino.h
index e41657792..dcc4968a0 100644
--- a/gl/lib/root-dev-ino.h
+++ b/gl/lib/root-dev-ino.h
@@ -1,6 +1,6 @@
 /* Root device and inode number checking.
 
-   Copyright (C) 2003-2022 Free Software Foundation, Inc.
+   Copyright (C) 2003-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/gl/lib/smack.h b/gl/lib/smack.h
index e5c8cc0b0..1bd9e942f 100644
--- a/gl/lib/smack.h
+++ b/gl/lib/smack.h
@@ -1,5 +1,5 @@
 /* Include and determine availability of smack routines
-   Copyright (C) 2013-2022 Free Software Foundation, Inc.
+   Copyright (C) 2013-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/gl/lib/strintcmp.c b/gl/lib/strintcmp.c
index acb6c4e8f..35b2e6ba4 100644
--- a/gl/lib/strintcmp.c
+++ b/gl/lib/strintcmp.c
@@ -1,6 +1,6 @@
 /* Compare integer strings.
 
-   Copyright (C) 2005-2022 Free Software Foundation, Inc.
+   Copyright (C) 2005-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/gl/lib/strnumcmp-in.h b/gl/lib/strnumcmp-in.h
index 1b124afd5..39b5caf77 100644
--- a/gl/lib/strnumcmp-in.h
+++ b/gl/lib/strnumcmp-in.h
@@ -1,6 +1,6 @@
 /* Compare numeric strings.  This is an internal include file.
 
-   Copyright (C) 1988-2022 Free Software Foundation, Inc.
+   Copyright (C) 1988-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/gl/lib/strnumcmp.c b/gl/lib/strnumcmp.c
index 3c1f73d6a..282091fc8 100644
--- a/gl/lib/strnumcmp.c
+++ b/gl/lib/strnumcmp.c
@@ -1,6 +1,6 @@
 /* Compare numeric strings.
 
-   Copyright (C) 2005-2022 Free Software Foundation, Inc.
+   Copyright (C) 2005-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/gl/lib/targetdir.c b/gl/lib/targetdir.c
index 0006ddcf4..e593dd17f 100644
--- a/gl/lib/targetdir.c
+++ b/gl/lib/targetdir.c
@@ -1,6 +1,6 @@
 /* Target directory operands for coreutils
 
-   Copyright 2004-2022 Free Software Foundation, Inc.
+   Copyright 2004-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/gl/lib/targetdir.h b/gl/lib/targetdir.h
index 6fa73ecc5..1f9c83558 100644
--- a/gl/lib/targetdir.h
+++ b/gl/lib/targetdir.h
@@ -1,6 +1,6 @@
 /* Target directory operands for coreutils
 
-   Copyright 2022 Free Software Foundation, Inc.
+   Copyright 2022-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/gl/lib/xdectoint.c b/gl/lib/xdectoint.c
index 41e3642bf..cc039be8a 100644
--- a/gl/lib/xdectoint.c
+++ b/gl/lib/xdectoint.c
@@ -1,6 +1,6 @@
 /* Convert decimal strings with bounds checking and exit on error.
 
-   Copyright (C) 2014-2022 Free Software Foundation, Inc.
+   Copyright (C) 2014-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/gl/lib/xdectoint.h b/gl/lib/xdectoint.h
index fce2fa293..bc919335b 100644
--- a/gl/lib/xdectoint.h
+++ b/gl/lib/xdectoint.h
@@ -1,6 +1,6 @@
 /* Convert decimal strings with bounds checking and exit on error.
 
-   Copyright (C) 2014-2022 Free Software Foundation, Inc.
+   Copyright (C) 2014-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/gl/lib/xfts.c b/gl/lib/xfts.c
index a112502e8..ec264b71c 100644
--- a/gl/lib/xfts.c
+++ b/gl/lib/xfts.c
@@ -1,6 +1,6 @@
 /* xfts.c -- a wrapper for fts_open
 
-   Copyright (C) 2003-2022 Free Software Foundation, Inc.
+   Copyright (C) 2003-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/gl/tests/test-fadvise.c b/gl/tests/test-fadvise.c
index c46b4064e..353fae404 100644
--- a/gl/tests/test-fadvise.c
+++ b/gl/tests/test-fadvise.c
@@ -1,5 +1,5 @@
 /* Test that fadvise works as advertised.
-   Copyright (C) 2010-2022 Free Software Foundation, Inc.
+   Copyright (C) 2010-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/gl/tests/test-mbsalign.c b/gl/tests/test-mbsalign.c
index edfd4f9bf..d7b50b470 100644
--- a/gl/tests/test-mbsalign.c
+++ b/gl/tests/test-mbsalign.c
@@ -1,5 +1,5 @@
 /* Test that mbsalign works as advertised.
-   Copyright (C) 2010-2022 Free Software Foundation, Inc.
+   Copyright (C) 2010-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/gl/tests/test-rand-isaac.c b/gl/tests/test-rand-isaac.c
index f414b2d2b..1a90fe6e2 100644
--- a/gl/tests/test-rand-isaac.c
+++ b/gl/tests/test-rand-isaac.c
@@ -1,6 +1,6 @@
 /* Test the ISAAC or ISAAC64 pseudorandom number generator.
 
-   Copyright (C) 2010-2022 Free Software Foundation, Inc.
+   Copyright (C) 2010-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/init.cfg b/init.cfg
index 856aa2ee7..eaef53a57 100644
--- a/init.cfg
+++ b/init.cfg
@@ -1,6 +1,6 @@
 # This file is sourced by init.sh, *before* its initialization.
 
-# Copyright (C) 2010-2022 Free Software Foundation, Inc.
+# Copyright (C) 2010-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/lib/t-chdir-long b/lib/t-chdir-long
index 3a1b21c2e..1cf7f7504 100755
--- a/lib/t-chdir-long
+++ b/lib/t-chdir-long
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Exercise chdir-long's sample main program.
 
-# Copyright (C) 2005-2022 Free Software Foundation, Inc.
+# Copyright (C) 2005-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/m4/boottime.m4 b/m4/boottime.m4
index f0744a903..ac277e0f2 100644
--- a/m4/boottime.m4
+++ b/m4/boottime.m4
@@ -1,7 +1,7 @@
 # boottime.m4 serial 4
 # Determine whether this system has infrastructure for obtaining the boot time.
 
-# Copyright (C) 1996-2022 Free Software Foundation, Inc.
+# Copyright (C) 1996-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/m4/check-decl.m4 b/m4/check-decl.m4
index 4405aa933..f00751041 100644
--- a/m4/check-decl.m4
+++ b/m4/check-decl.m4
@@ -1,7 +1,7 @@
 #serial 27
 # Check declarations for this package.
 
-dnl Copyright (C) 1997-2022 Free Software Foundation, Inc.
+dnl Copyright (C) 1997-2023 Free Software Foundation, Inc.
 
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
diff --git a/m4/include-exclude-prog.m4 b/m4/include-exclude-prog.m4
index ce26e1209..c3730c2b4 100644
--- a/m4/include-exclude-prog.m4
+++ b/m4/include-exclude-prog.m4
@@ -1,5 +1,5 @@
 #serial 2
-dnl Copyright (C) 2007-2022 Free Software Foundation, Inc.
+dnl Copyright (C) 2007-2023 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/m4/jm-macros.m4 b/m4/jm-macros.m4
index 7a1134005..0da7ae143 100644
--- a/m4/jm-macros.m4
+++ b/m4/jm-macros.m4
@@ -2,7 +2,7 @@
 
 dnl Misc type-related macros for coreutils.
 
-# Copyright (C) 1998-2022 Free Software Foundation, Inc.
+# Copyright (C) 1998-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/m4/prereq.m4 b/m4/prereq.m4
index b9cf7f66b..1892b0b38 100644
--- a/m4/prereq.m4
+++ b/m4/prereq.m4
@@ -7,7 +7,7 @@ m4_pattern_forbid([^gl_[ABCDEFGHIJKLMNOPQRSTUVXYZ]])dnl
 # directory of the coreutils package.
 
 
-# Copyright (C) 1998-2022 Free Software Foundation, Inc.
+# Copyright (C) 1998-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/m4/stat-prog.m4 b/m4/stat-prog.m4
index cbee9f996..e8173ce93 100644
--- a/m4/stat-prog.m4
+++ b/m4/stat-prog.m4
@@ -1,7 +1,7 @@
 # stat-prog.m4 serial 7
 # Record the prerequisites of src/stat.c from the coreutils package.
 
-# Copyright (C) 2002-2022 Free Software Foundation, Inc.
+# Copyright (C) 2002-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/m4/xattr.m4 b/m4/xattr.m4
index a7cb21455..e95e34915 100644
--- a/m4/xattr.m4
+++ b/m4/xattr.m4
@@ -1,7 +1,7 @@
 # xattr.m4 - check for Extended Attributes (Linux)
 # serial 4
 
-# Copyright (C) 2003-2022 Free Software Foundation, Inc.
+# Copyright (C) 2003-2023 Free Software Foundation, Inc.
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
diff --git a/man/basenc.x b/man/basenc.x
index 03e69126b..7b3211772 100644
--- a/man/basenc.x
+++ b/man/basenc.x
@@ -1,4 +1,4 @@
-'\" Copyright (C) 2018-2022 Free Software Foundation, Inc.
+'\" Copyright (C) 2018-2023 Free Software Foundation, Inc.
 '\"
 '\" This is free software.  You may redistribute copies of it under the terms
 '\" of the GNU General Public License <https://www.gnu.org/licenses/gpl.html>.
diff --git a/man/chmod.x b/man/chmod.x
index 3ab8ed055..b2a82d683 100644
--- a/man/chmod.x
+++ b/man/chmod.x
@@ -1,4 +1,4 @@
-'\" Copyright (C) 1998-2022 Free Software Foundation, Inc.
+'\" Copyright (C) 1998-2023 Free Software Foundation, Inc.
 '\"
 '\" This is free software.  You may redistribute copies of it under the terms
 '\" of the GNU General Public License <https://www.gnu.org/licenses/gpl.html>.
diff --git a/man/chown.x b/man/chown.x
index ee79d1b7d..bf8d256fb 100644
--- a/man/chown.x
+++ b/man/chown.x
@@ -1,4 +1,4 @@
-'\" Copyright (C) 1998-2022 Free Software Foundation, Inc.
+'\" Copyright (C) 1998-2023 Free Software Foundation, Inc.
 '\"
 '\" This is free software.  You may redistribute copies of it under the terms
 '\" of the GNU General Public License <https://www.gnu.org/licenses/gpl.html>.
diff --git a/man/df.x b/man/df.x
index 59da83e3e..15be327c5 100644
--- a/man/df.x
+++ b/man/df.x
@@ -1,4 +1,4 @@
-'\" Copyright (C) 1998-2022 Free Software Foundation, Inc.
+'\" Copyright (C) 1998-2023 Free Software Foundation, Inc.
 '\"
 '\" This is free software.  You may redistribute copies of it under the terms
 '\" of the GNU General Public License <https://www.gnu.org/licenses/gpl.html>.
diff --git a/man/du.x b/man/du.x
index 3a9f869c0..bc920eab4 100644
--- a/man/du.x
+++ b/man/du.x
@@ -1,4 +1,4 @@
-'\" Copyright (C) 1998-2022 Free Software Foundation, Inc.
+'\" Copyright (C) 1998-2023 Free Software Foundation, Inc.
 '\"
 '\" This is free software.  You may redistribute copies of it under the terms
 '\" of the GNU General Public License <https://www.gnu.org/licenses/gpl.html>.
diff --git a/man/env.x b/man/env.x
index 6dcbba57a..3775eff1e 100644
--- a/man/env.x
+++ b/man/env.x
@@ -1,4 +1,4 @@
-'\" Copyright (C) 1998-2022 Free Software Foundation, Inc.
+'\" Copyright (C) 1998-2023 Free Software Foundation, Inc.
 '\"
 '\" This is free software.  You may redistribute copies of it under the terms
 '\" of the GNU General Public License <https://www.gnu.org/licenses/gpl.html>.
diff --git a/man/local.mk b/man/local.mk
index 46ed35a40..5bdca2664 100644
--- a/man/local.mk
+++ b/man/local.mk
@@ -1,7 +1,7 @@
 # Make coreutils man pages.				-*-Makefile-*-
 # This is included by the top-level Makefile.am.
 
-# Copyright (C) 2002-2022 Free Software Foundation, Inc.
+# Copyright (C) 2002-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/man/rm.x b/man/rm.x
index 924610f5c..6087faff8 100644
--- a/man/rm.x
+++ b/man/rm.x
@@ -1,4 +1,4 @@
-'\" Copyright (C) 1998-2022 Free Software Foundation, Inc.
+'\" Copyright (C) 1998-2023 Free Software Foundation, Inc.
 '\"
 '\" This is free software.  You may redistribute copies of it under the terms
 '\" of the GNU General Public License <https://www.gnu.org/licenses/gpl.html>.
diff --git a/man/stdbuf.x b/man/stdbuf.x
index d3148495c..9fd7f9d41 100644
--- a/man/stdbuf.x
+++ b/man/stdbuf.x
@@ -1,4 +1,4 @@
-'\" Copyright (C) 2009-2022 Free Software Foundation, Inc.
+'\" Copyright (C) 2009-2023 Free Software Foundation, Inc.
 '\"
 '\" This is free software.  You may redistribute copies of it under the terms
 '\" of the GNU General Public License <https://www.gnu.org/licenses/gpl.html>.
diff --git a/man/test.x b/man/test.x
index 0db91dc9a..aaed55d43 100644
--- a/man/test.x
+++ b/man/test.x
@@ -1,4 +1,4 @@
-'\" Copyright (C) 1998-2022 Free Software Foundation, Inc.
+'\" Copyright (C) 1998-2023 Free Software Foundation, Inc.
 '\"
 '\" This is free software.  You may redistribute copies of it under the terms
 '\" of the GNU General Public License <https://www.gnu.org/licenses/gpl.html>.
diff --git a/po/POTFILES.in b/po/POTFILES.in
index 6a54e4ca0..9dbbe32f3 100644
--- a/po/POTFILES.in
+++ b/po/POTFILES.in
@@ -1,5 +1,5 @@
 # List of files which contain translatable strings.
-# Copyright (C) 1996-2022 Free Software Foundation, Inc.
+# Copyright (C) 1996-2023 Free Software Foundation, Inc.
 
 # These are nominally temporary...
 lib/argmatch.c
diff --git a/scripts/build-older-versions/README.older-versions b/scripts/build-older-versions/README.older-versions
index 1077a71bb..690f9f0e0 100644
--- a/scripts/build-older-versions/README.older-versions
+++ b/scripts/build-older-versions/README.older-versions
@@ -164,7 +164,7 @@ By adding the directory to your $PATH, older versions can be easily used:
 
 ========================================================================
 
-Copyright (C) 2019-2022 Free Software Foundation, Inc.
+Copyright (C) 2019-2023 Free Software Foundation, Inc.
 
 Permission is granted to copy, distribute and/or modify this document
 under the terms of the GNU Free Documentation License, Version 1.3 or
diff --git a/scripts/build-older-versions/build-older-versions.sh b/scripts/build-older-versions/build-older-versions.sh
index 0258ae578..e72757569 100755
--- a/scripts/build-older-versions/build-older-versions.sh
+++ b/scripts/build-older-versions/build-older-versions.sh
@@ -1,6 +1,6 @@
 #!/bin/sh
 #
-# Copyright (C) 2019-2022 Free Software Foundation, Inc.
+# Copyright (C) 2019-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification,
 # are permitted in any medium without royalty provided the copyright
diff --git a/src/basename.c b/src/basename.c
index 0e80bf94e..50ac2641e 100644
--- a/src/basename.c
+++ b/src/basename.c
@@ -1,5 +1,5 @@
 /* basename -- strip directory and suffix from file names
-   Copyright (C) 1990-2022 Free Software Foundation, Inc.
+   Copyright (C) 1990-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/basenc.c b/src/basenc.c
index 7c0a1f1fc..eaaf19867 100644
--- a/src/basenc.c
+++ b/src/basenc.c
@@ -1,5 +1,5 @@
 /* Base64, base32, and similar encoding/decoding strings or files.
-   Copyright (C) 2004-2022 Free Software Foundation, Inc.
+   Copyright (C) 2004-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/cat.c b/src/cat.c
index e9535240e..c215473cf 100644
--- a/src/cat.c
+++ b/src/cat.c
@@ -1,5 +1,5 @@
 /* cat -- concatenate files and print on the standard output.
-   Copyright (C) 1988-2022 Free Software Foundation, Inc.
+   Copyright (C) 1988-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/chcon.c b/src/chcon.c
index bfe77b5de..e16a3aece 100644
--- a/src/chcon.c
+++ b/src/chcon.c
@@ -1,5 +1,5 @@
 /* chcon -- change security context of files
-   Copyright (C) 2005-2022 Free Software Foundation, Inc.
+   Copyright (C) 2005-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/chgrp.c b/src/chgrp.c
index 31a6136cc..e695328e9 100644
--- a/src/chgrp.c
+++ b/src/chgrp.c
@@ -1,5 +1,5 @@
 /* chgrp -- change group ownership of files
-   Copyright (C) 1989-2022 Free Software Foundation, Inc.
+   Copyright (C) 1989-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/chmod.c b/src/chmod.c
index 81dd3192c..a0b83a8f7 100644
--- a/src/chmod.c
+++ b/src/chmod.c
@@ -1,5 +1,5 @@
 /* chmod -- change permission modes of files
-   Copyright (C) 1989-2022 Free Software Foundation, Inc.
+   Copyright (C) 1989-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/chown-core.c b/src/chown-core.c
index 428c96de9..aefd4f6ef 100644
--- a/src/chown-core.c
+++ b/src/chown-core.c
@@ -1,5 +1,5 @@
 /* chown-core.c -- core functions for changing ownership.
-   Copyright (C) 2000-2022 Free Software Foundation, Inc.
+   Copyright (C) 2000-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/chown-core.h b/src/chown-core.h
index 8d4b18104..edd054d90 100644
--- a/src/chown-core.h
+++ b/src/chown-core.h
@@ -1,6 +1,6 @@
 /* chown-core.h -- types and prototypes shared by chown and chgrp.
 
-   Copyright (C) 2000-2022 Free Software Foundation, Inc.
+   Copyright (C) 2000-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/chown.c b/src/chown.c
index 07cc907a4..f298b6081 100644
--- a/src/chown.c
+++ b/src/chown.c
@@ -1,5 +1,5 @@
 /* chown -- change user and group ownership of files
-   Copyright (C) 1989-2022 Free Software Foundation, Inc.
+   Copyright (C) 1989-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/chroot.c b/src/chroot.c
index 921d9ca3d..b5738df2f 100644
--- a/src/chroot.c
+++ b/src/chroot.c
@@ -1,5 +1,5 @@
 /* chroot -- run command or shell with special root directory
-   Copyright (C) 1995-2022 Free Software Foundation, Inc.
+   Copyright (C) 1995-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/cksum.c b/src/cksum.c
index c74aef051..30fbba724 100644
--- a/src/cksum.c
+++ b/src/cksum.c
@@ -1,5 +1,5 @@
 /* cksum -- calculate and print POSIX checksums and sizes of files
-   Copyright (C) 1992-2022 Free Software Foundation, Inc.
+   Copyright (C) 1992-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/cksum_pclmul.c b/src/cksum_pclmul.c
index 691302d74..9c6e4df54 100644
--- a/src/cksum_pclmul.c
+++ b/src/cksum_pclmul.c
@@ -1,5 +1,5 @@
 /* cksum -- calculate and print POSIX checksums and sizes of files
-   Copyright (C) 1992-2022 Free Software Foundation, Inc.
+   Copyright (C) 1992-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/comm.c b/src/comm.c
index ed9d97d0a..5a5881721 100644
--- a/src/comm.c
+++ b/src/comm.c
@@ -1,5 +1,5 @@
 /* comm -- compare two sorted files line by line.
-   Copyright (C) 1986-2022 Free Software Foundation, Inc.
+   Copyright (C) 1986-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/copy.c b/src/copy.c
index 7407517f1..310c8bf14 100644
--- a/src/copy.c
+++ b/src/copy.c
@@ -1,5 +1,5 @@
 /* copy.c -- core functions for copying files and directories
-   Copyright (C) 1989-2022 Free Software Foundation, Inc.
+   Copyright (C) 1989-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/copy.h b/src/copy.h
index b79e06e0f..d775db047 100644
--- a/src/copy.h
+++ b/src/copy.h
@@ -1,5 +1,5 @@
 /* core functions for copying files and directories
-   Copyright (C) 1989-2022 Free Software Foundation, Inc.
+   Copyright (C) 1989-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/coreutils-arch.c b/src/coreutils-arch.c
index d9c8e9ed9..232b09ff8 100644
--- a/src/coreutils-arch.c
+++ b/src/coreutils-arch.c
@@ -1,5 +1,5 @@
 /* arch -- wrapper to uname with the right uname_mode.
-   Copyright (C) 2014-2022 Free Software Foundation, Inc.
+   Copyright (C) 2014-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/coreutils-dir.c b/src/coreutils-dir.c
index 957192925..b772218c9 100644
--- a/src/coreutils-dir.c
+++ b/src/coreutils-dir.c
@@ -1,5 +1,5 @@
 /* dir -- wrapper to ls with the right ls_mode.
-   Copyright (C) 2014-2022 Free Software Foundation, Inc.
+   Copyright (C) 2014-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/coreutils-vdir.c b/src/coreutils-vdir.c
index 36e80bd93..aa2065b87 100644
--- a/src/coreutils-vdir.c
+++ b/src/coreutils-vdir.c
@@ -1,5 +1,5 @@
 /* vdir -- wrapper to ls with the right ls_mode.
-   Copyright (C) 2014-2022 Free Software Foundation, Inc.
+   Copyright (C) 2014-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/coreutils.c b/src/coreutils.c
index 8e761dfb1..e9ae1d18c 100644
--- a/src/coreutils.c
+++ b/src/coreutils.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2014-2022 Free Software Foundation, Inc.
+/* Copyright (C) 2014-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/cp-hash.c b/src/cp-hash.c
index e566a4c4a..99b2d91bb 100644
--- a/src/cp-hash.c
+++ b/src/cp-hash.c
@@ -1,5 +1,5 @@
 /* cp-hash.c  -- file copying (hash search routines)
-   Copyright (C) 1989-2022 Free Software Foundation, Inc.
+   Copyright (C) 1989-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/cp.c b/src/cp.c
index 0f44b3513..016ae8988 100644
--- a/src/cp.c
+++ b/src/cp.c
@@ -1,5 +1,5 @@
 /* cp.c  -- file copying (main routines)
-   Copyright (C) 1989-2022 Free Software Foundation, Inc.
+   Copyright (C) 1989-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/csplit.c b/src/csplit.c
index 8f21414e9..da4b36a7c 100644
--- a/src/csplit.c
+++ b/src/csplit.c
@@ -1,5 +1,5 @@
 /* csplit - split a file into sections determined by context lines
-   Copyright (C) 1991-2022 Free Software Foundation, Inc.
+   Copyright (C) 1991-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/cut.c b/src/cut.c
index 2a45eedff..e8346b7c7 100644
--- a/src/cut.c
+++ b/src/cut.c
@@ -1,5 +1,5 @@
 /* cut - remove parts of lines of files
-   Copyright (C) 1997-2022 Free Software Foundation, Inc.
+   Copyright (C) 1997-2023 Free Software Foundation, Inc.
    Copyright (C) 1984 David M. Ihnat
 
    This program is free software: you can redistribute it and/or modify
diff --git a/src/date.c b/src/date.c
index ff5c548c0..0f2012761 100644
--- a/src/date.c
+++ b/src/date.c
@@ -1,5 +1,5 @@
 /* date - print or set the system date and time
-   Copyright (C) 1989-2022 Free Software Foundation, Inc.
+   Copyright (C) 1989-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/dcgen b/src/dcgen
index ab6307c16..141d2c60d 100755
--- a/src/dcgen
+++ b/src/dcgen
@@ -1,7 +1,7 @@
 #!/usr/bin/perl -w
 # dcgen -- convert dircolors.hin to dircolors.h.
 
-# Copyright (C) 1996-2022 Free Software Foundation, Inc.
+# Copyright (C) 1996-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/src/dd.c b/src/dd.c
index 5227e0a7e..190a721b3 100644
--- a/src/dd.c
+++ b/src/dd.c
@@ -1,5 +1,5 @@
 /* dd -- convert a file while copying it.
-   Copyright (C) 1985-2022 Free Software Foundation, Inc.
+   Copyright (C) 1985-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/df.c b/src/df.c
index 4b2cfb77a..f3d8e2e2b 100644
--- a/src/df.c
+++ b/src/df.c
@@ -1,5 +1,5 @@
 /* df - summarize free file system space
-   Copyright (C) 1991-2022 Free Software Foundation, Inc.
+   Copyright (C) 1991-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/die.h b/src/die.h
index 0afb401fa..a9afa2ff9 100644
--- a/src/die.h
+++ b/src/die.h
@@ -1,5 +1,5 @@
 /* Report an error and exit.
-   Copyright 2016-2022 Free Software Foundation, Inc.
+   Copyright 2016-2023 Free Software Foundation, Inc.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/digest.c b/src/digest.c
index aae5dfebc..20c9940bf 100644
--- a/src/digest.c
+++ b/src/digest.c
@@ -1,5 +1,5 @@
 /* Compute checksums of files or strings.
-   Copyright (C) 1995-2022 Free Software Foundation, Inc.
+   Copyright (C) 1995-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/dircolors.c b/src/dircolors.c
index 373ef1b4f..f95524b67 100644
--- a/src/dircolors.c
+++ b/src/dircolors.c
@@ -1,5 +1,5 @@
 /* dircolors - output commands to set the LS_COLOR environment variable
-   Copyright (C) 1996-2022 Free Software Foundation, Inc.
+   Copyright (C) 1996-2023 Free Software Foundation, Inc.
    Copyright (C) 1994, 1995, 1997, 1998, 1999, 2000 H. Peter Anvin
 
    This program is free software: you can redistribute it and/or modify
diff --git a/src/dircolors.hin b/src/dircolors.hin
index f11735958..e5d9eab94 100644
--- a/src/dircolors.hin
+++ b/src/dircolors.hin
@@ -1,7 +1,7 @@
 # Configuration file for dircolors, a utility to help you set the
 # LS_COLORS environment variable used by GNU ls with the --color option.
 
-# Copyright (C) 1996-2022 Free Software Foundation, Inc.
+# Copyright (C) 1996-2023 Free Software Foundation, Inc.
 # Copying and distribution of this file, with or without modification,
 # are permitted provided the copyright notice and this notice are preserved.
 
diff --git a/src/dirname.c b/src/dirname.c
index 4f0bd4483..fb25cb5ed 100644
--- a/src/dirname.c
+++ b/src/dirname.c
@@ -1,6 +1,6 @@
 /* dirname -- strip suffix from file name
 
-   Copyright (C) 1990-2022 Free Software Foundation, Inc.
+   Copyright (C) 1990-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/du-tests b/src/du-tests
index aa6da1b3c..268b17738 100755
--- a/src/du-tests
+++ b/src/du-tests
@@ -1,6 +1,6 @@
 #!/bin/bash
 
-# Copyright (C) 2003-2022 Free Software Foundation, Inc.
+# Copyright (C) 2003-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/src/du.c b/src/du.c
index 579953368..71d6edd3d 100644
--- a/src/du.c
+++ b/src/du.c
@@ -1,5 +1,5 @@
 /* du -- summarize device usage
-   Copyright (C) 1988-2022 Free Software Foundation, Inc.
+   Copyright (C) 1988-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/echo.c b/src/echo.c
index 1f2cbc731..096876fda 100644
--- a/src/echo.c
+++ b/src/echo.c
@@ -1,5 +1,5 @@
 /* echo.c, derived from code echo.c in Bash.
-   Copyright (C) 1987-2022 Free Software Foundation, Inc.
+   Copyright (C) 1987-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/env.c b/src/env.c
index 62bf57117..2f38d7538 100644
--- a/src/env.c
+++ b/src/env.c
@@ -1,5 +1,5 @@
 /* env - run a program in a modified environment
-   Copyright (C) 1986-2022 Free Software Foundation, Inc.
+   Copyright (C) 1986-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/expand-common.c b/src/expand-common.c
index deec1bd67..36db6aad9 100644
--- a/src/expand-common.c
+++ b/src/expand-common.c
@@ -1,5 +1,5 @@
 /* expand-common - common functionality for expand/unexapnd
-   Copyright (C) 1989-2022 Free Software Foundation, Inc.
+   Copyright (C) 1989-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/expand-common.h b/src/expand-common.h
index 5f59a0e31..33976ade2 100644
--- a/src/expand-common.h
+++ b/src/expand-common.h
@@ -1,6 +1,6 @@
 /* expand-common - common functionality for expand/unexapnd
 
-   Copyright (C) 1989-2022 Free Software Foundation, Inc.
+   Copyright (C) 1989-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/expand.c b/src/expand.c
index ed78ca81d..d682a8641 100644
--- a/src/expand.c
+++ b/src/expand.c
@@ -1,5 +1,5 @@
 /* expand - convert tabs to spaces
-   Copyright (C) 1989-2022 Free Software Foundation, Inc.
+   Copyright (C) 1989-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/expr.c b/src/expr.c
index 77b34d34d..19475f349 100644
--- a/src/expr.c
+++ b/src/expr.c
@@ -1,5 +1,5 @@
 /* expr -- evaluate expressions.
-   Copyright (C) 1986-2022 Free Software Foundation, Inc.
+   Copyright (C) 1986-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/extract-magic b/src/extract-magic
index 8d135c3d9..f8d3029e8 100644
--- a/src/extract-magic
+++ b/src/extract-magic
@@ -1,7 +1,7 @@
 #!/usr/bin/perl -w
 # Derive #define directives from specially formatted 'case ...:' statements.
 
-# Copyright (C) 2003-2022 Free Software Foundation, Inc.
+# Copyright (C) 2003-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/src/factor.c b/src/factor.c
index 8e3d93c60..20508e355 100644
--- a/src/factor.c
+++ b/src/factor.c
@@ -1,5 +1,5 @@
 /* factor -- print prime factors of n.
-   Copyright (C) 1986-2022 Free Software Foundation, Inc.
+   Copyright (C) 1986-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/find-mount-point.c b/src/find-mount-point.c
index b3dff48cf..529e01165 100644
--- a/src/find-mount-point.c
+++ b/src/find-mount-point.c
@@ -1,5 +1,5 @@
 /* find-mount-point.c -- find the root mount point for a file.
-   Copyright (C) 2010-2022 Free Software Foundation, Inc.
+   Copyright (C) 2010-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/find-mount-point.h b/src/find-mount-point.h
index 503ab6bdc..96d562f81 100644
--- a/src/find-mount-point.h
+++ b/src/find-mount-point.h
@@ -1,5 +1,5 @@
 /* find-mount-point.h -- find the root mount point for a file.
-   Copyright (C) 2010-2022 Free Software Foundation, Inc.
+   Copyright (C) 2010-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/fmt.c b/src/fmt.c
index e5a48e6bf..4b97385ca 100644
--- a/src/fmt.c
+++ b/src/fmt.c
@@ -1,5 +1,5 @@
 /* GNU fmt -- simple text formatter.
-   Copyright (C) 1994-2022 Free Software Foundation, Inc.
+   Copyright (C) 1994-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/fold.c b/src/fold.c
index f07a90b3b..0ee39c3b7 100644
--- a/src/fold.c
+++ b/src/fold.c
@@ -1,5 +1,5 @@
 /* fold -- wrap each input line to fit in specified width.
-   Copyright (C) 1991-2022 Free Software Foundation, Inc.
+   Copyright (C) 1991-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/force-link.c b/src/force-link.c
index bd6ea25a1..b3a822e43 100644
--- a/src/force-link.c
+++ b/src/force-link.c
@@ -1,6 +1,6 @@
 /* Implement ln -f "atomically"
 
-   Copyright 2017-2022 Free Software Foundation, Inc.
+   Copyright 2017-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/getlimits.c b/src/getlimits.c
index e689f8c1e..9cf29275b 100644
--- a/src/getlimits.c
+++ b/src/getlimits.c
@@ -1,5 +1,5 @@
 /* getlimits - print various platform dependent limits.
-   Copyright (C) 2008-2022 Free Software Foundation, Inc.
+   Copyright (C) 2008-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/group-list.c b/src/group-list.c
index 05f572001..b3f502174 100644
--- a/src/group-list.c
+++ b/src/group-list.c
@@ -1,5 +1,5 @@
 /* group-list.c --Print a list of group IDs or names.
-   Copyright (C) 1989-2022 Free Software Foundation, Inc.
+   Copyright (C) 1989-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/group-list.h b/src/group-list.h
index 085b821b2..399a07a38 100644
--- a/src/group-list.h
+++ b/src/group-list.h
@@ -1,6 +1,6 @@
 /* group-list.h -- prototypes shared by id and groups.
 
-   Copyright (C) 2008-2022 Free Software Foundation, Inc.
+   Copyright (C) 2008-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/groups.c b/src/groups.c
index 7c9aefc28..568bfa018 100644
--- a/src/groups.c
+++ b/src/groups.c
@@ -1,5 +1,5 @@
 /* groups -- print the groups a user is in
-   Copyright (C) 1989-2022 Free Software Foundation, Inc.
+   Copyright (C) 1989-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/head.c b/src/head.c
index f917790b9..63674d769 100644
--- a/src/head.c
+++ b/src/head.c
@@ -1,5 +1,5 @@
 /* head -- output first part of file(s)
-   Copyright (C) 1989-2022 Free Software Foundation, Inc.
+   Copyright (C) 1989-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/hostid.c b/src/hostid.c
index 019002031..f81fae46a 100644
--- a/src/hostid.c
+++ b/src/hostid.c
@@ -1,6 +1,6 @@
 /* print the hexadecimal identifier for the current host
 
-   Copyright (C) 1997-2022 Free Software Foundation, Inc.
+   Copyright (C) 1997-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/hostname.c b/src/hostname.c
index e07e98b2b..68df41fd6 100644
--- a/src/hostname.c
+++ b/src/hostname.c
@@ -1,5 +1,5 @@
 /* hostname - set or print the name of current host system
-   Copyright (C) 1994-2022 Free Software Foundation, Inc.
+   Copyright (C) 1994-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/id.c b/src/id.c
index f7625b6fb..c8e23d817 100644
--- a/src/id.c
+++ b/src/id.c
@@ -1,5 +1,5 @@
 /* id -- print real and effective UIDs and GIDs
-   Copyright (C) 1989-2022 Free Software Foundation, Inc.
+   Copyright (C) 1989-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/install.c b/src/install.c
index 5c4baf7d4..41c9de306 100644
--- a/src/install.c
+++ b/src/install.c
@@ -1,5 +1,5 @@
 /* install - copy files and set attributes
-   Copyright (C) 1989-2022 Free Software Foundation, Inc.
+   Copyright (C) 1989-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/ioblksize.h b/src/ioblksize.h
index 8bd18ba05..7a56c1a51 100644
--- a/src/ioblksize.h
+++ b/src/ioblksize.h
@@ -1,5 +1,5 @@
 /* I/O block size definitions for coreutils
-   Copyright (C) 1989-2022 Free Software Foundation, Inc.
+   Copyright (C) 1989-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/join.c b/src/join.c
index fde4634f0..7965a699d 100644
--- a/src/join.c
+++ b/src/join.c
@@ -1,5 +1,5 @@
 /* join - join lines of two files on a common field
-   Copyright (C) 1991-2022 Free Software Foundation, Inc.
+   Copyright (C) 1991-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/kill.c b/src/kill.c
index 33e602dcd..1b5c420ae 100644
--- a/src/kill.c
+++ b/src/kill.c
@@ -1,5 +1,5 @@
 /* kill -- send a signal to a process
-   Copyright (C) 2002-2022 Free Software Foundation, Inc.
+   Copyright (C) 2002-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/libstdbuf.c b/src/libstdbuf.c
index 5ac492d8a..dbdf14a00 100644
--- a/src/libstdbuf.c
+++ b/src/libstdbuf.c
@@ -1,5 +1,5 @@
 /* libstdbuf -- a shared lib to preload to setup stdio buffering for a command
-   Copyright (C) 2009-2022 Free Software Foundation, Inc.
+   Copyright (C) 2009-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/link.c b/src/link.c
index 68cbd06f9..3ecf27642 100644
--- a/src/link.c
+++ b/src/link.c
@@ -1,5 +1,5 @@
 /* link utility for GNU.
-   Copyright (C) 2001-2022 Free Software Foundation, Inc.
+   Copyright (C) 2001-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/ln.c b/src/ln.c
index bb4695853..05d89990e 100644
--- a/src/ln.c
+++ b/src/ln.c
@@ -1,5 +1,5 @@
 /* 'ln' program to create links between files.
-   Copyright (C) 1986-2022 Free Software Foundation, Inc.
+   Copyright (C) 1986-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/local.mk b/src/local.mk
index e1d15ce16..1faf50e57 100644
--- a/src/local.mk
+++ b/src/local.mk
@@ -1,7 +1,7 @@
 # Make coreutils programs.                             -*-Makefile-*-
 # This is included by the top-level Makefile.am.
 
-## Copyright (C) 1990-2022 Free Software Foundation, Inc.
+## Copyright (C) 1990-2023 Free Software Foundation, Inc.
 
 ## This program is free software: you can redistribute it and/or modify
 ## it under the terms of the GNU General Public License as published by
diff --git a/src/logname.c b/src/logname.c
index 1b0cc0da1..9117888fe 100644
--- a/src/logname.c
+++ b/src/logname.c
@@ -1,5 +1,5 @@
 /* logname -- print user's login name
-   Copyright (C) 1990-2022 Free Software Foundation, Inc.
+   Copyright (C) 1990-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/longlong.h b/src/longlong.h
index 6e279b466..d5f3831c5 100644
--- a/src/longlong.h
+++ b/src/longlong.h
@@ -1,6 +1,6 @@
 /* longlong.h -- definitions for mixed size 32/64 bit arithmetic.
 
-Copyright 1991-2022 Free Software Foundation, Inc.
+Copyright 1991-2023 Free Software Foundation, Inc.
 
 This file is free software; you can redistribute it and/or modify it under the
 terms of the GNU Lesser General Public License as published by the Free
diff --git a/src/ls.c b/src/ls.c
index 8d5de7fcd..bd9130ccb 100644
--- a/src/ls.c
+++ b/src/ls.c
@@ -1,5 +1,5 @@
 /* 'dir', 'vdir' and 'ls' directory listing programs for GNU.
-   Copyright (C) 1985-2022 Free Software Foundation, Inc.
+   Copyright (C) 1985-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/make-prime-list.c b/src/make-prime-list.c
index 89c9e1fe7..51080cb30 100644
--- a/src/make-prime-list.c
+++ b/src/make-prime-list.c
@@ -3,7 +3,7 @@
    Contributed to the GNU project by Torbjörn Granlund and Niels Möller
    Contains code from GNU MP.
 
-Copyright 2012-2022 Free Software Foundation, Inc.
+Copyright 2012-2023 Free Software Foundation, Inc.
 
 This program is free software; you can redistribute it and/or modify it under
 the terms of the GNU General Public License as published by the Free Software
diff --git a/src/mkdir.c b/src/mkdir.c
index 8ab3bec76..da5c84764 100644
--- a/src/mkdir.c
+++ b/src/mkdir.c
@@ -1,5 +1,5 @@
 /* mkdir -- make directories
-   Copyright (C) 1990-2022 Free Software Foundation, Inc.
+   Copyright (C) 1990-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/mkfifo.c b/src/mkfifo.c
index 85c705044..abe59b694 100644
--- a/src/mkfifo.c
+++ b/src/mkfifo.c
@@ -1,5 +1,5 @@
 /* mkfifo -- make fifo's (named pipes)
-   Copyright (C) 1990-2022 Free Software Foundation, Inc.
+   Copyright (C) 1990-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/mknod.c b/src/mknod.c
index f47c4ebdf..908f283e9 100644
--- a/src/mknod.c
+++ b/src/mknod.c
@@ -1,5 +1,5 @@
 /* mknod -- make special files
-   Copyright (C) 1990-2022 Free Software Foundation, Inc.
+   Copyright (C) 1990-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/mktemp.c b/src/mktemp.c
index 9edcf5415..89f21fd7e 100644
--- a/src/mktemp.c
+++ b/src/mktemp.c
@@ -1,5 +1,5 @@
 /* Create a temporary file or directory, safely.
-   Copyright (C) 2007-2022 Free Software Foundation, Inc.
+   Copyright (C) 2007-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/mv.c b/src/mv.c
index 53b9c1300..72bbe8e46 100644
--- a/src/mv.c
+++ b/src/mv.c
@@ -1,5 +1,5 @@
 /* mv -- move or rename files
-   Copyright (C) 1986-2022 Free Software Foundation, Inc.
+   Copyright (C) 1986-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/nice.c b/src/nice.c
index ce97e13dc..e0eab1a85 100644
--- a/src/nice.c
+++ b/src/nice.c
@@ -1,5 +1,5 @@
 /* nice -- run a program with modified niceness
-   Copyright (C) 1990-2022 Free Software Foundation, Inc.
+   Copyright (C) 1990-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/nl.c b/src/nl.c
index 2644f1545..11c140114 100644
--- a/src/nl.c
+++ b/src/nl.c
@@ -1,5 +1,5 @@
 /* nl -- number lines of files
-   Copyright (C) 1989-2022 Free Software Foundation, Inc.
+   Copyright (C) 1989-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/nohup.c b/src/nohup.c
index 8e011ad2f..91ccc11e9 100644
--- a/src/nohup.c
+++ b/src/nohup.c
@@ -1,5 +1,5 @@
 /* nohup -- run a command immune to hangups, with output to a non-tty
-   Copyright (C) 2003-2022 Free Software Foundation, Inc.
+   Copyright (C) 2003-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/nproc.c b/src/nproc.c
index 0b988c90f..f4e655946 100644
--- a/src/nproc.c
+++ b/src/nproc.c
@@ -1,5 +1,5 @@
 /* nproc - print the number of processors.
-   Copyright (C) 2009-2022 Free Software Foundation, Inc.
+   Copyright (C) 2009-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/numfmt.c b/src/numfmt.c
index b1067d227..e917b0dc6 100644
--- a/src/numfmt.c
+++ b/src/numfmt.c
@@ -1,5 +1,5 @@
 /* Reformat numbers like 11505426432 to the more human-readable 11G
-   Copyright (C) 2012-2022 Free Software Foundation, Inc.
+   Copyright (C) 2012-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/od.c b/src/od.c
index 6fff4ab02..e3f21b3cb 100644
--- a/src/od.c
+++ b/src/od.c
@@ -1,5 +1,5 @@
 /* od -- dump files in octal and other formats
-   Copyright (C) 1992-2022 Free Software Foundation, Inc.
+   Copyright (C) 1992-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/operand2sig.c b/src/operand2sig.c
index 3ae2484e7..bbcb0f579 100644
--- a/src/operand2sig.c
+++ b/src/operand2sig.c
@@ -1,5 +1,5 @@
 /* operand2sig.c -- common function for parsing signal specifications
-   Copyright (C) 2008-2022 Free Software Foundation, Inc.
+   Copyright (C) 2008-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/operand2sig.h b/src/operand2sig.h
index f55ccabeb..1847a72b0 100644
--- a/src/operand2sig.h
+++ b/src/operand2sig.h
@@ -1,6 +1,6 @@
 /* operand2sig.h -- prototype for signal specification function
 
-   Copyright (C) 2008-2022 Free Software Foundation, Inc.
+   Copyright (C) 2008-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/paste.c b/src/paste.c
index 0a8d52535..5c194d8fe 100644
--- a/src/paste.c
+++ b/src/paste.c
@@ -1,5 +1,5 @@
 /* paste - merge lines of files
-   Copyright (C) 1997-2022 Free Software Foundation, Inc.
+   Copyright (C) 1997-2023 Free Software Foundation, Inc.
    Copyright (C) 1984 David M. Ihnat
 
    This program is free software: you can redistribute it and/or modify
diff --git a/src/pathchk.c b/src/pathchk.c
index bc2b750dc..2864b4010 100644
--- a/src/pathchk.c
+++ b/src/pathchk.c
@@ -1,5 +1,5 @@
 /* pathchk -- check whether file names are valid or portable
-   Copyright (C) 1991-2022 Free Software Foundation, Inc.
+   Copyright (C) 1991-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/pinky.c b/src/pinky.c
index 88862c2f0..79317dc34 100644
--- a/src/pinky.c
+++ b/src/pinky.c
@@ -1,5 +1,5 @@
 /* GNU's pinky.
-   Copyright (C) 1992-2022 Free Software Foundation, Inc.
+   Copyright (C) 1992-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/pr.c b/src/pr.c
index a8feba9d8..ec624bffd 100644
--- a/src/pr.c
+++ b/src/pr.c
@@ -1,5 +1,5 @@
 /* pr -- convert text files for printing.
-   Copyright (C) 1988-2022 Free Software Foundation, Inc.
+   Copyright (C) 1988-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/printenv.c b/src/printenv.c
index 0b178bedd..5ac5964ef 100644
--- a/src/printenv.c
+++ b/src/printenv.c
@@ -1,5 +1,5 @@
 /* printenv -- print all or part of environment
-   Copyright (C) 1989-2022 Free Software Foundation, Inc.
+   Copyright (C) 1989-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/printf.c b/src/printf.c
index 5d420cef2..8c49ba436 100644
--- a/src/printf.c
+++ b/src/printf.c
@@ -1,5 +1,5 @@
 /* printf - format and print data
-   Copyright (C) 1990-2022 Free Software Foundation, Inc.
+   Copyright (C) 1990-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/prog-fprintf.c b/src/prog-fprintf.c
index f03da0302..1066099b2 100644
--- a/src/prog-fprintf.c
+++ b/src/prog-fprintf.c
@@ -1,5 +1,5 @@
 /* prog-fprintf.c - common formating output functions and definitions
-   Copyright (C) 2008-2022 Free Software Foundation, Inc.
+   Copyright (C) 2008-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/prog-fprintf.h b/src/prog-fprintf.h
index 8e8e65061..c1493dc63 100644
--- a/src/prog-fprintf.h
+++ b/src/prog-fprintf.h
@@ -1,5 +1,5 @@
 /* prog-fprintf.h - common formating output functions and definitions
-   Copyright (C) 2008-2022 Free Software Foundation, Inc.
+   Copyright (C) 2008-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/ptx.c b/src/ptx.c
index d7decc2ac..78b9368fc 100644
--- a/src/ptx.c
+++ b/src/ptx.c
@@ -1,5 +1,5 @@
 /* Permuted index for GNU, with keywords in their context.
-   Copyright (C) 1990-2022 Free Software Foundation, Inc.
+   Copyright (C) 1990-2023 Free Software Foundation, Inc.
    François Pinard <pinard@iro.umontreal.ca>, 1988.
 
    This program is free software: you can redistribute it and/or modify
diff --git a/src/pwd.c b/src/pwd.c
index 63e940f25..e03b4e01e 100644
--- a/src/pwd.c
+++ b/src/pwd.c
@@ -1,5 +1,5 @@
 /* pwd - print current directory
-   Copyright (C) 1994-2022 Free Software Foundation, Inc.
+   Copyright (C) 1994-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/readlink.c b/src/readlink.c
index 2a16e8078..12284c1fc 100644
--- a/src/readlink.c
+++ b/src/readlink.c
@@ -1,5 +1,5 @@
 /* readlink -- display value of a symbolic link.
-   Copyright (C) 2002-2022 Free Software Foundation, Inc.
+   Copyright (C) 2002-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/realpath.c b/src/realpath.c
index 6be7165af..90cae6d2d 100644
--- a/src/realpath.c
+++ b/src/realpath.c
@@ -1,5 +1,5 @@
 /* realpath - print the resolved path
-   Copyright (C) 2011-2022 Free Software Foundation, Inc.
+   Copyright (C) 2011-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/relpath.c b/src/relpath.c
index bec34f7f3..23e47010e 100644
--- a/src/relpath.c
+++ b/src/relpath.c
@@ -1,5 +1,5 @@
 /* relpath - print the relative path
-   Copyright (C) 2012-2022 Free Software Foundation, Inc.
+   Copyright (C) 2012-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/relpath.h b/src/relpath.h
index c69b95e6e..351e7f138 100644
--- a/src/relpath.h
+++ b/src/relpath.h
@@ -1,5 +1,5 @@
 /* relpath - print the relative path
-   Copyright (C) 2012-2022 Free Software Foundation, Inc.
+   Copyright (C) 2012-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/remove.c b/src/remove.c
index a19794d5e..a1603722e 100644
--- a/src/remove.c
+++ b/src/remove.c
@@ -1,5 +1,5 @@
 /* remove.c -- core functions for removing files and directories
-   Copyright (C) 1988-2022 Free Software Foundation, Inc.
+   Copyright (C) 1988-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/remove.h b/src/remove.h
index b92c63daa..77a818ea4 100644
--- a/src/remove.h
+++ b/src/remove.h
@@ -1,6 +1,6 @@
 /* Remove directory entries.
 
-   Copyright (C) 1998-2022 Free Software Foundation, Inc.
+   Copyright (C) 1998-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/rm.c b/src/rm.c
index 67fdc2751..354e2b0df 100644
--- a/src/rm.c
+++ b/src/rm.c
@@ -1,5 +1,5 @@
 /* 'rm' file deletion utility for GNU.
-   Copyright (C) 1988-2022 Free Software Foundation, Inc.
+   Copyright (C) 1988-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/rmdir.c b/src/rmdir.c
index 1b249969b..ccfaa0933 100644
--- a/src/rmdir.c
+++ b/src/rmdir.c
@@ -1,6 +1,6 @@
 /* rmdir -- remove directories
 
-   Copyright (C) 1990-2022 Free Software Foundation, Inc.
+   Copyright (C) 1990-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/runcon.c b/src/runcon.c
index cefb489c1..7f54ca25e 100644
--- a/src/runcon.c
+++ b/src/runcon.c
@@ -1,5 +1,5 @@
 /* runcon -- run command with specified security context
-   Copyright (C) 2005-2022 Free Software Foundation, Inc.
+   Copyright (C) 2005-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/selinux.c b/src/selinux.c
index cd01dd13f..2bd91d071 100644
--- a/src/selinux.c
+++ b/src/selinux.c
@@ -1,5 +1,5 @@
 /* selinux - core functions for maintaining SELinux labeling
-   Copyright (C) 2012-2022 Free Software Foundation, Inc.
+   Copyright (C) 2012-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/selinux.h b/src/selinux.h
index 09cad5820..680fc84da 100644
--- a/src/selinux.h
+++ b/src/selinux.h
@@ -1,5 +1,5 @@
 /* selinux - core functions for maintaining SELinux labeling
-   Copyright (C) 2012-2022 Free Software Foundation, Inc.
+   Copyright (C) 2012-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/seq.c b/src/seq.c
index 47ac67f72..fe65670f4 100644
--- a/src/seq.c
+++ b/src/seq.c
@@ -1,5 +1,5 @@
 /* seq - print sequence of numbers to standard output.
-   Copyright (C) 1994-2022 Free Software Foundation, Inc.
+   Copyright (C) 1994-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/set-fields.c b/src/set-fields.c
index 670706f1c..027429c94 100644
--- a/src/set-fields.c
+++ b/src/set-fields.c
@@ -1,5 +1,5 @@
 /* set-fields.c -- common functions for parsing field list
-   Copyright (C) 2015-2022 Free Software Foundation, Inc.
+   Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/set-fields.h b/src/set-fields.h
index 3e7613a98..313eea881 100644
--- a/src/set-fields.h
+++ b/src/set-fields.h
@@ -1,6 +1,6 @@
 /* set-fields.h -- parse field list argument
 
-   Copyright (C) 2015-2022 Free Software Foundation, Inc.
+   Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/shred.c b/src/shred.c
index 23eb8ba50..b4f885cd4 100644
--- a/src/shred.c
+++ b/src/shred.c
@@ -1,6 +1,6 @@
 /* shred.c - overwrite files and devices to make it harder to recover data
 
-   Copyright (C) 1999-2022 Free Software Foundation, Inc.
+   Copyright (C) 1999-2023 Free Software Foundation, Inc.
    Copyright (C) 1997, 1998, 1999 Colin Plumb.
 
    This program is free software: you can redistribute it and/or modify
diff --git a/src/shuf.c b/src/shuf.c
index 1c0037b7b..4e82e10fc 100644
--- a/src/shuf.c
+++ b/src/shuf.c
@@ -1,6 +1,6 @@
 /* Shuffle lines of text.
 
-   Copyright (C) 2006-2022 Free Software Foundation, Inc.
+   Copyright (C) 2006-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/sleep.c b/src/sleep.c
index 5f8656eea..5aeeb98e8 100644
--- a/src/sleep.c
+++ b/src/sleep.c
@@ -1,5 +1,5 @@
 /* sleep - delay for a specified amount of time.
-   Copyright (C) 1984-2022 Free Software Foundation, Inc.
+   Copyright (C) 1984-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/sort.c b/src/sort.c
index cc60e03c8..a99f01072 100644
--- a/src/sort.c
+++ b/src/sort.c
@@ -1,5 +1,5 @@
 /* sort - sort lines of text (with all kinds of options).
-   Copyright (C) 1988-2022 Free Software Foundation, Inc.
+   Copyright (C) 1988-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/split.c b/src/split.c
index b7a0d0e5b..d0f4e66e2 100644
--- a/src/split.c
+++ b/src/split.c
@@ -1,5 +1,5 @@
 /* split.c -- split a file into pieces.
-   Copyright (C) 1988-2022 Free Software Foundation, Inc.
+   Copyright (C) 1988-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/stat.c b/src/stat.c
index 1a9755ff0..ecb9696ca 100644
--- a/src/stat.c
+++ b/src/stat.c
@@ -1,5 +1,5 @@
 /* stat.c -- display file or file system status
-   Copyright (C) 2001-2022 Free Software Foundation, Inc.
+   Copyright (C) 2001-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/statx.h b/src/statx.h
index e8b1bd263..dd8cb32b8 100644
--- a/src/statx.h
+++ b/src/statx.h
@@ -1,5 +1,5 @@
 /* statx -> stat conversion functions for coreutils
-   Copyright (C) 2019-2022 Free Software Foundation, Inc.
+   Copyright (C) 2019-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/stdbuf.c b/src/stdbuf.c
index 4d70901a3..f3eb9b016 100644
--- a/src/stdbuf.c
+++ b/src/stdbuf.c
@@ -1,5 +1,5 @@
 /* stdbuf -- setup the standard streams for a command
-   Copyright (C) 2009-2022 Free Software Foundation, Inc.
+   Copyright (C) 2009-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/stty.c b/src/stty.c
index f3c7915e1..fb7feefab 100644
--- a/src/stty.c
+++ b/src/stty.c
@@ -1,5 +1,5 @@
 /* stty -- change and print terminal line settings
-   Copyright (C) 1990-2022 Free Software Foundation, Inc.
+   Copyright (C) 1990-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/sum.c b/src/sum.c
index cb5bc032e..46657a0ca 100644
--- a/src/sum.c
+++ b/src/sum.c
@@ -1,5 +1,5 @@
 /* sum -- checksum and count the blocks in a file
-   Copyright (C) 1986-2022 Free Software Foundation, Inc.
+   Copyright (C) 1986-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/sync.c b/src/sync.c
index de6de5d00..207ce9b7e 100644
--- a/src/sync.c
+++ b/src/sync.c
@@ -1,5 +1,5 @@
 /* sync - update the super block
-   Copyright (C) 1994-2022 Free Software Foundation, Inc.
+   Copyright (C) 1994-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/system.h b/src/system.h
index db971473a..52ed378d1 100644
--- a/src/system.h
+++ b/src/system.h
@@ -1,5 +1,5 @@
 /* system-dependent definitions for coreutils
-   Copyright (C) 1989-2022 Free Software Foundation, Inc.
+   Copyright (C) 1989-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/tac-pipe.c b/src/tac-pipe.c
index 0bcab1bb0..983435e0b 100644
--- a/src/tac-pipe.c
+++ b/src/tac-pipe.c
@@ -1,6 +1,6 @@
 /* tac from a pipe.
 
-   Copyright (C) 1997-2022 Free Software Foundation, Inc.
+   Copyright (C) 1997-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/tac.c b/src/tac.c
index fd3778250..268c11363 100644
--- a/src/tac.c
+++ b/src/tac.c
@@ -1,5 +1,5 @@
 /* tac - concatenate and print files in reverse
-   Copyright (C) 1988-2022 Free Software Foundation, Inc.
+   Copyright (C) 1988-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/tail.c b/src/tail.c
index 14abf0871..35bc55130 100644
--- a/src/tail.c
+++ b/src/tail.c
@@ -1,5 +1,5 @@
 /* tail -- output the last part of file(s)
-   Copyright (C) 1989-2022 Free Software Foundation, Inc.
+   Copyright (C) 1989-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/tee.c b/src/tee.c
index 971b768c5..b48320d22 100644
--- a/src/tee.c
+++ b/src/tee.c
@@ -1,5 +1,5 @@
 /* tee - read from standard input and write to standard output and files.
-   Copyright (C) 1985-2022 Free Software Foundation, Inc.
+   Copyright (C) 1985-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/test.c b/src/test.c
index cea7dc10d..103a72ad3 100644
--- a/src/test.c
+++ b/src/test.c
@@ -2,7 +2,7 @@
 
 /* Modified to run with the GNU shell by bfox. */
 
-/* Copyright (C) 1987-2022 Free Software Foundation, Inc.
+/* Copyright (C) 1987-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/timeout.c b/src/timeout.c
index 7c9ff98d5..34cf49e32 100644
--- a/src/timeout.c
+++ b/src/timeout.c
@@ -1,5 +1,5 @@
 /* timeout -- run a command with bounded time
-   Copyright (C) 2008-2022 Free Software Foundation, Inc.
+   Copyright (C) 2008-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/touch.c b/src/touch.c
index d8d232c19..a044f2dce 100644
--- a/src/touch.c
+++ b/src/touch.c
@@ -1,5 +1,5 @@
 /* touch -- change modification and access times of files
-   Copyright (C) 1987-2022 Free Software Foundation, Inc.
+   Copyright (C) 1987-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/tr.c b/src/tr.c
index 59b0969d2..f79429c4e 100644
--- a/src/tr.c
+++ b/src/tr.c
@@ -1,5 +1,5 @@
 /* tr -- a filter to translate characters
-   Copyright (C) 1991-2022 Free Software Foundation, Inc.
+   Copyright (C) 1991-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/true.c b/src/true.c
index 99170b6bd..b9ec4380a 100644
--- a/src/true.c
+++ b/src/true.c
@@ -1,5 +1,5 @@
 /* Exit with a status code indicating success.
-   Copyright (C) 1999-2022 Free Software Foundation, Inc.
+   Copyright (C) 1999-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/truncate.c b/src/truncate.c
index cd44edaed..24f2db418 100644
--- a/src/truncate.c
+++ b/src/truncate.c
@@ -1,5 +1,5 @@
 /* truncate -- truncate or extend the length of files.
-   Copyright (C) 2008-2022 Free Software Foundation, Inc.
+   Copyright (C) 2008-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/tsort.c b/src/tsort.c
index 383c7a083..0032cb5d0 100644
--- a/src/tsort.c
+++ b/src/tsort.c
@@ -1,5 +1,5 @@
 /* tsort - topological sort.
-   Copyright (C) 1998-2022 Free Software Foundation, Inc.
+   Copyright (C) 1998-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/tty.c b/src/tty.c
index 562c4e708..c15fb8919 100644
--- a/src/tty.c
+++ b/src/tty.c
@@ -1,5 +1,5 @@
 /* tty -- print the name of the terminal connected to standard input
-   Copyright (C) 1990-2022 Free Software Foundation, Inc.
+   Copyright (C) 1990-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/uname.c b/src/uname.c
index 385674f9d..921a8818d 100644
--- a/src/uname.c
+++ b/src/uname.c
@@ -1,6 +1,6 @@
 /* uname -- print system information
 
-   Copyright (C) 1989-2022 Free Software Foundation, Inc.
+   Copyright (C) 1989-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/unexpand.c b/src/unexpand.c
index 7d6100f6c..8c97f0d2d 100644
--- a/src/unexpand.c
+++ b/src/unexpand.c
@@ -1,5 +1,5 @@
 /* unexpand - convert blanks to tabs
-   Copyright (C) 1989-2022 Free Software Foundation, Inc.
+   Copyright (C) 1989-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/uniq.c b/src/uniq.c
index c94620b68..ad0c1d6ae 100644
--- a/src/uniq.c
+++ b/src/uniq.c
@@ -1,5 +1,5 @@
 /* uniq -- remove duplicate lines from a sorted file
-   Copyright (C) 1986-2022 Free Software Foundation, Inc.
+   Copyright (C) 1986-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/unlink.c b/src/unlink.c
index 8fc2af5fd..889e21727 100644
--- a/src/unlink.c
+++ b/src/unlink.c
@@ -1,5 +1,5 @@
 /* unlink utility for GNU.
-   Copyright (C) 2001-2022 Free Software Foundation, Inc.
+   Copyright (C) 2001-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/uptime.c b/src/uptime.c
index 1adacaada..b1d9e96c3 100644
--- a/src/uptime.c
+++ b/src/uptime.c
@@ -1,5 +1,5 @@
 /* GNU's uptime.
-   Copyright (C) 1992-2022 Free Software Foundation, Inc.
+   Copyright (C) 1992-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/users.c b/src/users.c
index 6f88b7526..86bd1b1f4 100644
--- a/src/users.c
+++ b/src/users.c
@@ -1,5 +1,5 @@
 /* GNU's users.
-   Copyright (C) 1992-2022 Free Software Foundation, Inc.
+   Copyright (C) 1992-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/wc.c b/src/wc.c
index df9770396..5f3ef6eee 100644
--- a/src/wc.c
+++ b/src/wc.c
@@ -1,5 +1,5 @@
 /* wc - print the number of lines, words, and bytes in files
-   Copyright (C) 1985-2022 Free Software Foundation, Inc.
+   Copyright (C) 1985-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/wc_avx2.c b/src/wc_avx2.c
index 7d329a2c6..3ff0c41b7 100644
--- a/src/wc_avx2.c
+++ b/src/wc_avx2.c
@@ -1,5 +1,5 @@
 /* wc_avx - Count the number of newlines with avx2 instructions.
-   Copyright (C) 2021-2022 Free Software Foundation, Inc.
+   Copyright (C) 2021-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/who.c b/src/who.c
index 5158c9675..06e1ab0f6 100644
--- a/src/who.c
+++ b/src/who.c
@@ -1,5 +1,5 @@
 /* GNU's who.
-   Copyright (C) 1992-2022 Free Software Foundation, Inc.
+   Copyright (C) 1992-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/whoami.c b/src/whoami.c
index 9f8644564..a93c0c6a2 100644
--- a/src/whoami.c
+++ b/src/whoami.c
@@ -1,6 +1,6 @@
 /* whoami -- print effective userid
 
-   Copyright (C) 1989-2022 Free Software Foundation, Inc.
+   Copyright (C) 1989-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/yes.c b/src/yes.c
index 13b990e24..b6fc0ffb5 100644
--- a/src/yes.c
+++ b/src/yes.c
@@ -1,5 +1,5 @@
 /* yes - output a string repeatedly until killed
-   Copyright (C) 1991-2022 Free Software Foundation, Inc.
+   Copyright (C) 1991-2023 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/tests/Coreutils.pm b/tests/Coreutils.pm
index e2c53923a..f147401d3 100644
--- a/tests/Coreutils.pm
+++ b/tests/Coreutils.pm
@@ -1,7 +1,7 @@
 package Coreutils;
 # This is a testing framework.
 
-# Copyright (C) 1998-2022 Free Software Foundation, Inc.
+# Copyright (C) 1998-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/CuSkip.pm b/tests/CuSkip.pm
index f753ad1e9..10b5e0181 100644
--- a/tests/CuSkip.pm
+++ b/tests/CuSkip.pm
@@ -1,7 +1,7 @@
 package CuSkip;
 # Skip a test: emit diag to log and to stderr, and exit 77
 
-# Copyright (C) 2011-2022 Free Software Foundation, Inc.
+# Copyright (C) 2011-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/CuTmpdir.pm b/tests/CuTmpdir.pm
index 57b49fa8d..10766dda2 100644
--- a/tests/CuTmpdir.pm
+++ b/tests/CuTmpdir.pm
@@ -1,7 +1,7 @@
 package CuTmpdir;
 # create, then chdir into a temporary sub-directory
 
-# Copyright (C) 2007-2022 Free Software Foundation, Inc.
+# Copyright (C) 2007-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/chgrp/basic.sh b/tests/chgrp/basic.sh
index c3c583aa5..f3a359787 100755
--- a/tests/chgrp/basic.sh
+++ b/tests/chgrp/basic.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # make sure chgrp is reasonable
 
-# Copyright (C) 2000-2022 Free Software Foundation, Inc.
+# Copyright (C) 2000-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/chgrp/default-no-deref.sh b/tests/chgrp/default-no-deref.sh
index f7c4cf740..22a439a59 100755
--- a/tests/chgrp/default-no-deref.sh
+++ b/tests/chgrp/default-no-deref.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Ensure that chgrp -R does not dereference symlinks.
 
-# Copyright (C) 2006-2022 Free Software Foundation, Inc.
+# Copyright (C) 2006-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/chgrp/deref.sh b/tests/chgrp/deref.sh
index 83987335e..ef10444a9 100755
--- a/tests/chgrp/deref.sh
+++ b/tests/chgrp/deref.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # see if chgrp can change the group of a symlink
 
-# Copyright (C) 2000-2022 Free Software Foundation, Inc.
+# Copyright (C) 2000-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/chgrp/no-x.sh b/tests/chgrp/no-x.sh
index 61888a658..8397d80bc 100755
--- a/tests/chgrp/no-x.sh
+++ b/tests/chgrp/no-x.sh
@@ -2,7 +2,7 @@
 # Make sure chgrp gives the right diagnostic for a readable,
 # but inaccessible directory.
 
-# Copyright (C) 2003-2022 Free Software Foundation, Inc.
+# Copyright (C) 2003-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/chgrp/posix-H.sh b/tests/chgrp/posix-H.sh
index 42e5eef73..e57e25028 100755
--- a/tests/chgrp/posix-H.sh
+++ b/tests/chgrp/posix-H.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test POSIX-mandated -H option.
 
-# Copyright (C) 2003-2022 Free Software Foundation, Inc.
+# Copyright (C) 2003-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/chgrp/recurse.sh b/tests/chgrp/recurse.sh
index a03b961dd..3a8b36562 100755
--- a/tests/chgrp/recurse.sh
+++ b/tests/chgrp/recurse.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # ad-hoc tests of chgrp with -R and -H or -L and symlinks
 
-# Copyright (C) 2000-2022 Free Software Foundation, Inc.
+# Copyright (C) 2000-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/chmod/c-option.sh b/tests/chmod/c-option.sh
index f9deeb280..c683d121f 100755
--- a/tests/chmod/c-option.sh
+++ b/tests/chmod/c-option.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Verify that chmod's --changes (-c) option works.
 
-# Copyright (C) 2000-2022 Free Software Foundation, Inc.
+# Copyright (C) 2000-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/chmod/equal-x.sh b/tests/chmod/equal-x.sh
index 0e4f2360c..6a8de0faa 100755
--- a/tests/chmod/equal-x.sh
+++ b/tests/chmod/equal-x.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test "chmod =x" and the like.
 
-# Copyright (C) 1999-2022 Free Software Foundation, Inc.
+# Copyright (C) 1999-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/chmod/equals.sh b/tests/chmod/equals.sh
index 182474ada..c343e9ce0 100755
--- a/tests/chmod/equals.sh
+++ b/tests/chmod/equals.sh
@@ -3,7 +3,7 @@
 # Before fileutils-4.1.2, some of them didn't.
 # Also, before coreutils-5.3.1, =[ugo] sometimes didn't work.
 
-# Copyright (C) 2001-2022 Free Software Foundation, Inc.
+# Copyright (C) 2001-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/chmod/ignore-symlink.sh b/tests/chmod/ignore-symlink.sh
index 9bc03e849..5ee561b0a 100755
--- a/tests/chmod/ignore-symlink.sh
+++ b/tests/chmod/ignore-symlink.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test for proper exit code of chmod on a processed symlink.
 
-# Copyright (C) 2021-2022 Free Software Foundation, Inc.
+# Copyright (C) 2021-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/chmod/inaccessible.sh b/tests/chmod/inaccessible.sh
index 70ed53b0f..340f75de9 100755
--- a/tests/chmod/inaccessible.sh
+++ b/tests/chmod/inaccessible.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test for the bug fixed on 2006-09-20.
 
-# Copyright (C) 2006-2022 Free Software Foundation, Inc.
+# Copyright (C) 2006-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/chmod/no-x.sh b/tests/chmod/no-x.sh
index 052634d40..50c248027 100755
--- a/tests/chmod/no-x.sh
+++ b/tests/chmod/no-x.sh
@@ -2,7 +2,7 @@
 # Make sure chmod gives the right diagnostic for a readable,
 # but inaccessible directory.
 
-# Copyright (C) 2003-2022 Free Software Foundation, Inc.
+# Copyright (C) 2003-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/chmod/octal.sh b/tests/chmod/octal.sh
index 4d4e6a1f7..0cecda4cc 100755
--- a/tests/chmod/octal.sh
+++ b/tests/chmod/octal.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # ensure that chmod diagnoses a certain type of invalid mode string
 
-# Copyright (C) 2005-2022 Free Software Foundation, Inc.
+# Copyright (C) 2005-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/chmod/setgid.sh b/tests/chmod/setgid.sh
index fdeb34354..9f277f0be 100755
--- a/tests/chmod/setgid.sh
+++ b/tests/chmod/setgid.sh
@@ -3,7 +3,7 @@
 # on directories with the setgid bit set.  Also, check that the GNU octal
 # notations work.
 
-# Copyright (C) 2001-2022 Free Software Foundation, Inc.
+# Copyright (C) 2001-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/chmod/silent.sh b/tests/chmod/silent.sh
index c47fae205..b2ed3e722 100755
--- a/tests/chmod/silent.sh
+++ b/tests/chmod/silent.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # ensure that chgrp, chmod, chown -f don't print some diagnostics
 
-# Copyright (C) 2008-2022 Free Software Foundation, Inc.
+# Copyright (C) 2008-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/chmod/thru-dangling.sh b/tests/chmod/thru-dangling.sh
index 995381637..284c68b3a 100755
--- a/tests/chmod/thru-dangling.sh
+++ b/tests/chmod/thru-dangling.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test for proper error and exit code of chmod on a dangling symlink.
 
-# Copyright (C) 2007-2022 Free Software Foundation, Inc.
+# Copyright (C) 2007-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/chmod/umask-x.sh b/tests/chmod/umask-x.sh
index 85c53a56e..cd8c275e0 100755
--- a/tests/chmod/umask-x.sh
+++ b/tests/chmod/umask-x.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test that chmod -x file reports an error if the result is executable.
 
-# Copyright (C) 2005-2022 Free Software Foundation, Inc.
+# Copyright (C) 2005-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/chmod/usage.sh b/tests/chmod/usage.sh
index 214423029..e83270b16 100755
--- a/tests/chmod/usage.sh
+++ b/tests/chmod/usage.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Verify that chmod works correctly with odd option combinations.
 
-# Copyright (C) 2004-2022 Free Software Foundation, Inc.
+# Copyright (C) 2004-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/chown/basic.sh b/tests/chown/basic.sh
index 6f5751274..2db9ef715 100755
--- a/tests/chown/basic.sh
+++ b/tests/chown/basic.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # make sure chown --from=... works
 
-# Copyright (C) 2001-2022 Free Software Foundation, Inc.
+# Copyright (C) 2001-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/chown/deref.sh b/tests/chown/deref.sh
index 617ab2b50..d669a7c71 100755
--- a/tests/chown/deref.sh
+++ b/tests/chown/deref.sh
@@ -2,7 +2,7 @@
 # For coreutils-5.2.1 and earlier, chown --dereference would skip
 # symlinks having owner/group matching the specified owner/group.
 
-# Copyright (C) 2004-2022 Free Software Foundation, Inc.
+# Copyright (C) 2004-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/chown/preserve-root.sh b/tests/chown/preserve-root.sh
index 02665d202..4ef8662e7 100755
--- a/tests/chown/preserve-root.sh
+++ b/tests/chown/preserve-root.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Verify that --preserve-root works.
 
-# Copyright (C) 2006-2022 Free Software Foundation, Inc.
+# Copyright (C) 2006-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/chown/separator.sh b/tests/chown/separator.sh
index c2e5e5979..2631b123b 100755
--- a/tests/chown/separator.sh
+++ b/tests/chown/separator.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Make sure "chown USER:GROUP FILE" works, and similar tests with separators.
 
-# Copyright (C) 2004-2022 Free Software Foundation, Inc.
+# Copyright (C) 2004-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/cp/abuse.sh b/tests/cp/abuse.sh
index 4e657174a..8c3eee1ba 100755
--- a/tests/cp/abuse.sh
+++ b/tests/cp/abuse.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # ensure that cp does not write through a just-copied symlink
 
-# Copyright (C) 2007-2022 Free Software Foundation, Inc.
+# Copyright (C) 2007-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/cp/acl.sh b/tests/cp/acl.sh
index 152b8d6b7..6d0170d61 100755
--- a/tests/cp/acl.sh
+++ b/tests/cp/acl.sh
@@ -2,7 +2,7 @@
 # copy files/directories across file system boundaries
 # and make sure acls are preserved appropriately
 
-# Copyright (C) 2005-2022 Free Software Foundation, Inc.
+# Copyright (C) 2005-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/cp/attr-existing.sh b/tests/cp/attr-existing.sh
index a6ff58b06..47772ab8e 100755
--- a/tests/cp/attr-existing.sh
+++ b/tests/cp/attr-existing.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Make sure cp --attributes-only doesn't truncate existing data
 
-# Copyright 2012-2022 Free Software Foundation, Inc.
+# Copyright 2012-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/cp/backup-1.sh b/tests/cp/backup-1.sh
index 9c1750bb2..613d3a487 100755
--- a/tests/cp/backup-1.sh
+++ b/tests/cp/backup-1.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test cp backup.
 
-# Copyright (C) 1997-2022 Free Software Foundation, Inc.
+# Copyright (C) 1997-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/cp/backup-dir.sh b/tests/cp/backup-dir.sh
index 531367d5e..6573d58e0 100755
--- a/tests/cp/backup-dir.sh
+++ b/tests/cp/backup-dir.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Ensure that cp -b doesn't back up directories.
 
-# Copyright (C) 2006-2022 Free Software Foundation, Inc.
+# Copyright (C) 2006-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/cp/backup-is-src.sh b/tests/cp/backup-is-src.sh
index 50497aa73..6534f5e9a 100755
--- a/tests/cp/backup-is-src.sh
+++ b/tests/cp/backup-is-src.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test cp backup to source file.
 
-# Copyright (C) 1998-2022 Free Software Foundation, Inc.
+# Copyright (C) 1998-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/cp/capability.sh b/tests/cp/capability.sh
index f67b2cb5e..be3a7f8ef 100755
--- a/tests/cp/capability.sh
+++ b/tests/cp/capability.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Ensure cp --preserves copies capabilities
 
-# Copyright (C) 2010-2022 Free Software Foundation, Inc.
+# Copyright (C) 2010-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/cp/copy-FMR.sh b/tests/cp/copy-FMR.sh
index e6dcce74c..56d2d646e 100755
--- a/tests/cp/copy-FMR.sh
+++ b/tests/cp/copy-FMR.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Trigger a free-memory read bug in cp from coreutils-[8.11..8.19]
 
-# Copyright (C) 2012-2022 Free Software Foundation, Inc.
+# Copyright (C) 2012-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/cp/cp-HL.sh b/tests/cp/cp-HL.sh
index 54f8a79f9..d5bbedd04 100755
--- a/tests/cp/cp-HL.sh
+++ b/tests/cp/cp-HL.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # test cp's -H and -L options
 
-# Copyright (C) 2000-2022 Free Software Foundation, Inc.
+# Copyright (C) 2000-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/cp/cp-a-selinux.sh b/tests/cp/cp-a-selinux.sh
index f0872bc97..8679a01d6 100755
--- a/tests/cp/cp-a-selinux.sh
+++ b/tests/cp/cp-a-selinux.sh
@@ -4,7 +4,7 @@
 # Check also locally if --preserve=context, -a and --preserve=all
 # does work
 
-# Copyright (C) 2007-2022 Free Software Foundation, Inc.
+# Copyright (C) 2007-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/cp/cp-deref.sh b/tests/cp/cp-deref.sh
index b5eed2035..783ec07f8 100755
--- a/tests/cp/cp-deref.sh
+++ b/tests/cp/cp-deref.sh
@@ -2,7 +2,7 @@
 # cp -RL dir1 dir2' must handle the case in which each of dir1 and dir2
 # contain a symlink pointing to some third directory.
 
-# Copyright (C) 2006-2022 Free Software Foundation, Inc.
+# Copyright (C) 2006-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/cp/cp-i.sh b/tests/cp/cp-i.sh
index f2cafa785..6fbc31760 100755
--- a/tests/cp/cp-i.sh
+++ b/tests/cp/cp-i.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test whether cp -i prompts in the right place.
 
-# Copyright (C) 2006-2022 Free Software Foundation, Inc.
+# Copyright (C) 2006-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/cp/cp-mv-backup.sh b/tests/cp/cp-mv-backup.sh
index 36f650175..5c3e4fc1f 100755
--- a/tests/cp/cp-mv-backup.sh
+++ b/tests/cp/cp-mv-backup.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test basic --backup functionality for both cp and mv.
 
-# Copyright (C) 1999-2022 Free Software Foundation, Inc.
+# Copyright (C) 1999-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/cp/cp-mv-enotsup-xattr.sh b/tests/cp/cp-mv-enotsup-xattr.sh
index 9164c6ea6..4b967ebfb 100755
--- a/tests/cp/cp-mv-enotsup-xattr.sh
+++ b/tests/cp/cp-mv-enotsup-xattr.sh
@@ -3,7 +3,7 @@
 # as expected on file systems without their support and do show correct
 # diagnostics when required
 
-# Copyright (C) 2009-2022 Free Software Foundation, Inc.
+# Copyright (C) 2009-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/cp/cp-parents.sh b/tests/cp/cp-parents.sh
index 9644469f9..20963eace 100755
--- a/tests/cp/cp-parents.sh
+++ b/tests/cp/cp-parents.sh
@@ -1,6 +1,6 @@
 #!/bin/sh
 
-# Copyright (C) 2000-2022 Free Software Foundation, Inc.
+# Copyright (C) 2000-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/cp/cross-dev-symlink.sh b/tests/cp/cross-dev-symlink.sh
index f7df2229a..21340b4aa 100755
--- a/tests/cp/cross-dev-symlink.sh
+++ b/tests/cp/cross-dev-symlink.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Ensure symlinks can be replaced across devices
 
-# Copyright (C) 2018-2022 Free Software Foundation, Inc.
+# Copyright (C) 2018-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/cp/deref-slink.sh b/tests/cp/deref-slink.sh
index c7561c018..a0088c3c4 100755
--- a/tests/cp/deref-slink.sh
+++ b/tests/cp/deref-slink.sh
@@ -2,7 +2,7 @@
 # Demonstrate bug when using -d with an existing destination file
 # that is a symlink.
 
-# Copyright (C) 2000-2022 Free Software Foundation, Inc.
+# Copyright (C) 2000-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/cp/dir-rm-dest.sh b/tests/cp/dir-rm-dest.sh
index c784abb2b..5a8233d03 100755
--- a/tests/cp/dir-rm-dest.sh
+++ b/tests/cp/dir-rm-dest.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # verify cp's --remove-destination option
 
-# Copyright (C) 2000-2022 Free Software Foundation, Inc.
+# Copyright (C) 2000-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/cp/dir-slash.sh b/tests/cp/dir-slash.sh
index e3e5a1f8d..d69b8020d 100755
--- a/tests/cp/dir-slash.sh
+++ b/tests/cp/dir-slash.sh
@@ -2,7 +2,7 @@
 # Make sure that cp -R DIR1 DIR2 does the right thing
 # when DIR1 is written with a trailing slash.
 
-# Copyright (C) 2000-2022 Free Software Foundation, Inc.
+# Copyright (C) 2000-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/cp/dir-vs-file.sh b/tests/cp/dir-vs-file.sh
index 7f3350100..f4ce100c9 100755
--- a/tests/cp/dir-vs-file.sh
+++ b/tests/cp/dir-vs-file.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # A directory may not replace an existing file.
 
-# Copyright (C) 2001-2022 Free Software Foundation, Inc.
+# Copyright (C) 2001-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/cp/existing-perm-dir.sh b/tests/cp/existing-perm-dir.sh
index 46d73a701..16d5f6ced 100755
--- a/tests/cp/existing-perm-dir.sh
+++ b/tests/cp/existing-perm-dir.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Make sure cp -p doesn't "restore" permissions it shouldn't (Bug#9170).
 
-# Copyright 2011-2022 Free Software Foundation, Inc.
+# Copyright 2011-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/cp/existing-perm-race.sh b/tests/cp/existing-perm-race.sh
index 9c3542622..44641b4de 100755
--- a/tests/cp/existing-perm-race.sh
+++ b/tests/cp/existing-perm-race.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Make sure cp -p isn't too generous with existing file permissions.
 
-# Copyright (C) 2006-2022 Free Software Foundation, Inc.
+# Copyright (C) 2006-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/cp/fail-perm.sh b/tests/cp/fail-perm.sh
index b41c5ef36..be32d5db6 100755
--- a/tests/cp/fail-perm.sh
+++ b/tests/cp/fail-perm.sh
@@ -1,6 +1,6 @@
 #!/bin/sh
 
-# Copyright (C) 2000-2022 Free Software Foundation, Inc.
+# Copyright (C) 2000-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/cp/file-perm-race.sh b/tests/cp/file-perm-race.sh
index 14fa27ea3..70368840b 100755
--- a/tests/cp/file-perm-race.sh
+++ b/tests/cp/file-perm-race.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Make sure cp -p isn't too generous with file permissions.
 
-# Copyright (C) 2006-2022 Free Software Foundation, Inc.
+# Copyright (C) 2006-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/cp/into-self.sh b/tests/cp/into-self.sh
index cfd36409f..fb2e8200c 100755
--- a/tests/cp/into-self.sh
+++ b/tests/cp/into-self.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Confirm that copying a directory into itself gets a proper diagnostic.
 
-# Copyright (C) 2001-2022 Free Software Foundation, Inc.
+# Copyright (C) 2001-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/cp/link-deref.sh b/tests/cp/link-deref.sh
index e0eded5af..28b20a2cb 100755
--- a/tests/cp/link-deref.sh
+++ b/tests/cp/link-deref.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Exercise cp --link's behavior regarding the dereferencing of symbolic links.
 
-# Copyright (C) 2013-2022 Free Software Foundation, Inc.
+# Copyright (C) 2013-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/cp/link-heap.sh b/tests/cp/link-heap.sh
index 52aaa85d3..42ac9a9a0 100755
--- a/tests/cp/link-heap.sh
+++ b/tests/cp/link-heap.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # ensure that cp --preserve=link --link doesn't waste heap
 
-# Copyright (C) 2008-2022 Free Software Foundation, Inc.
+# Copyright (C) 2008-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/cp/link-no-deref.sh b/tests/cp/link-no-deref.sh
index 97d52fbc4..2c60ef603 100755
--- a/tests/cp/link-no-deref.sh
+++ b/tests/cp/link-no-deref.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Ensure that cp --link --no-dereference works properly
 
-# Copyright (C) 2006-2022 Free Software Foundation, Inc.
+# Copyright (C) 2006-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/cp/link-preserve.sh b/tests/cp/link-preserve.sh
index 47474322a..c938a94bf 100755
--- a/tests/cp/link-preserve.sh
+++ b/tests/cp/link-preserve.sh
@@ -2,7 +2,7 @@
 # ensure that 'cp -d' preserves hard-links between command line arguments
 # ensure that --preserve=links works with -RH and -RL
 
-# Copyright (C) 2001-2022 Free Software Foundation, Inc.
+# Copyright (C) 2001-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/cp/link-symlink.sh b/tests/cp/link-symlink.sh
index 63d166d2e..8df53843d 100755
--- a/tests/cp/link-symlink.sh
+++ b/tests/cp/link-symlink.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Ensure that cp -a --link maintains timestamps if possible
 
-# Copyright (C) 2011-2022 Free Software Foundation, Inc.
+# Copyright (C) 2011-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/cp/link.sh b/tests/cp/link.sh
index 2a1cead76..e56015495 100755
--- a/tests/cp/link.sh
+++ b/tests/cp/link.sh
@@ -2,7 +2,7 @@
 # Make sure cp --link -f works when the target exists.
 # This failed for 4.0z (due to a bug introduced in that test release).
 
-# Copyright (C) 2000-2022 Free Software Foundation, Inc.
+# Copyright (C) 2000-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/cp/nfs-removal-race.sh b/tests/cp/nfs-removal-race.sh
index 76038121e..679397ec1 100755
--- a/tests/cp/nfs-removal-race.sh
+++ b/tests/cp/nfs-removal-race.sh
@@ -13,7 +13,7 @@
 # This test is skipped on systems that lack LD_PRELOAD support; that's fine.
 # Similarly, on a system that lacks <dlfcn.h> or __xstat, skipping it is fine.
 
-# Copyright (C) 2012-2022 Free Software Foundation, Inc.
+# Copyright (C) 2012-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/cp/no-ctx.sh b/tests/cp/no-ctx.sh
index 78367a707..8c69bf38d 100755
--- a/tests/cp/no-ctx.sh
+++ b/tests/cp/no-ctx.sh
@@ -4,7 +4,7 @@
 # This test is skipped on systems that lack LD_PRELOAD support; that's fine.
 # Similarly, on a system that lacks lgetfilecon altogether, skipping it is fine.
 
-# Copyright (C) 2014-2022 Free Software Foundation, Inc.
+# Copyright (C) 2014-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/cp/no-deref-link1.sh b/tests/cp/no-deref-link1.sh
index 678179f5a..3b3d9922b 100755
--- a/tests/cp/no-deref-link1.sh
+++ b/tests/cp/no-deref-link1.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # cp from 3.16 fails this test
 
-# Copyright (C) 1997-2022 Free Software Foundation, Inc.
+# Copyright (C) 1997-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/cp/no-deref-link2.sh b/tests/cp/no-deref-link2.sh
index 33e4268a7..6eb47a8b1 100755
--- a/tests/cp/no-deref-link2.sh
+++ b/tests/cp/no-deref-link2.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # cp from 3.16 fails this test
 
-# Copyright (C) 1997-2022 Free Software Foundation, Inc.
+# Copyright (C) 1997-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/cp/no-deref-link3.sh b/tests/cp/no-deref-link3.sh
index c156214b8..1d7d7049c 100755
--- a/tests/cp/no-deref-link3.sh
+++ b/tests/cp/no-deref-link3.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # cp from 3.16 fails this test
 
-# Copyright (C) 1997-2022 Free Software Foundation, Inc.
+# Copyright (C) 1997-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/cp/parent-perm-race.sh b/tests/cp/parent-perm-race.sh
index 5c142d11f..694ffd998 100755
--- a/tests/cp/parent-perm-race.sh
+++ b/tests/cp/parent-perm-race.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Make sure cp -pR --parents isn't too generous with parent permissions.
 
-# Copyright (C) 2006-2022 Free Software Foundation, Inc.
+# Copyright (C) 2006-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/cp/parent-perm.sh b/tests/cp/parent-perm.sh
index 6cc79b839..a79164eeb 100755
--- a/tests/cp/parent-perm.sh
+++ b/tests/cp/parent-perm.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Ensure that cp --parents works properly with a preexisting dest. directory
 
-# Copyright (C) 2008-2022 Free Software Foundation, Inc.
+# Copyright (C) 2008-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/cp/perm.sh b/tests/cp/perm.sh
index 813b017d8..c6414aaf3 100755
--- a/tests/cp/perm.sh
+++ b/tests/cp/perm.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Make sure the permission-preserving code in copy.c (mv, cp, install) works.
 
-# Copyright (C) 2000-2022 Free Software Foundation, Inc.
+# Copyright (C) 2000-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/cp/preserve-2.sh b/tests/cp/preserve-2.sh
index 1f0fbbce3..ed1a9c122 100755
--- a/tests/cp/preserve-2.sh
+++ b/tests/cp/preserve-2.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # ensure that cp's --preserve=X,Y option is parsed properly
 
-# Copyright (C) 2002-2022 Free Software Foundation, Inc.
+# Copyright (C) 2002-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/cp/preserve-gid.sh b/tests/cp/preserve-gid.sh
index 8b36eab15..4add028c9 100755
--- a/tests/cp/preserve-gid.sh
+++ b/tests/cp/preserve-gid.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Verify that cp -p preserves GID when it is possible.
 
-# Copyright (C) 2007-2022 Free Software Foundation, Inc.
+# Copyright (C) 2007-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/cp/preserve-link.sh b/tests/cp/preserve-link.sh
index e4a7e65fb..eb83b0f2b 100755
--- a/tests/cp/preserve-link.sh
+++ b/tests/cp/preserve-link.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Exercise the fix for https://bugs.gnu.org/8419
 
-# Copyright (C) 2011-2022 Free Software Foundation, Inc.
+# Copyright (C) 2011-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/cp/preserve-mode.sh b/tests/cp/preserve-mode.sh
index 75273031a..d27801cb9 100755
--- a/tests/cp/preserve-mode.sh
+++ b/tests/cp/preserve-mode.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Check whether cp generates files with correct modes.
 
-# Copyright (C) 2002-2022 Free Software Foundation, Inc.
+# Copyright (C) 2002-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/cp/preserve-slink-time.sh b/tests/cp/preserve-slink-time.sh
index e0484d07e..e689f0d84 100755
--- a/tests/cp/preserve-slink-time.sh
+++ b/tests/cp/preserve-slink-time.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Verify that cp -Pp preserves times even on symlinks.
 
-# Copyright (C) 2009-2022 Free Software Foundation, Inc.
+# Copyright (C) 2009-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/cp/proc-short-read.sh b/tests/cp/proc-short-read.sh
index f93d79ad6..0f7c9e697 100755
--- a/tests/cp/proc-short-read.sh
+++ b/tests/cp/proc-short-read.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # exercise cp's short-read failure when operating on >4KB files in /proc
 
-# Copyright (C) 2009-2022 Free Software Foundation, Inc.
+# Copyright (C) 2009-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/cp/proc-zero-len.sh b/tests/cp/proc-zero-len.sh
index 1c11bd372..243fb40a3 100755
--- a/tests/cp/proc-zero-len.sh
+++ b/tests/cp/proc-zero-len.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Ensure that cp copies contents of non-empty "regular" file with st_size==0
 
-# Copyright (C) 2007-2022 Free Software Foundation, Inc.
+# Copyright (C) 2007-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/cp/r-vs-symlink.sh b/tests/cp/r-vs-symlink.sh
index 0ad9b754a..64b23dcda 100755
--- a/tests/cp/r-vs-symlink.sh
+++ b/tests/cp/r-vs-symlink.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # cp -r should not create symlinks.  Fixed in fileutils-4.1.5.
 
-# Copyright (C) 2001-2022 Free Software Foundation, Inc.
+# Copyright (C) 2001-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/cp/reflink-auto.sh b/tests/cp/reflink-auto.sh
index 16b4078b1..dcf6e239b 100755
--- a/tests/cp/reflink-auto.sh
+++ b/tests/cp/reflink-auto.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test cp --reflink=auto
 
-# Copyright (C) 2009-2022 Free Software Foundation, Inc.
+# Copyright (C) 2009-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/cp/reflink-perm.sh b/tests/cp/reflink-perm.sh
index 192fceba7..480076f46 100755
--- a/tests/cp/reflink-perm.sh
+++ b/tests/cp/reflink-perm.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test cp --reflink copies permissions
 
-# Copyright (C) 2009-2022 Free Software Foundation, Inc.
+# Copyright (C) 2009-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/cp/same-file.sh b/tests/cp/same-file.sh
index 7a615659f..03f66ba8f 100755
--- a/tests/cp/same-file.sh
+++ b/tests/cp/same-file.sh
@@ -2,7 +2,7 @@
 # Test some of cp's options and how cp handles situations in
 # which a naive implementation might overwrite the source file.
 
-# Copyright (C) 1998-2022 Free Software Foundation, Inc.
+# Copyright (C) 1998-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/cp/slink-2-slink.sh b/tests/cp/slink-2-slink.sh
index 4abf395c6..00e3feeb3 100755
--- a/tests/cp/slink-2-slink.sh
+++ b/tests/cp/slink-2-slink.sh
@@ -2,7 +2,7 @@
 # 'test cp --update A B' where A and B are both symlinks that point
 # to the same file
 
-# Copyright (C) 2000-2022 Free Software Foundation, Inc.
+# Copyright (C) 2000-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/cp/sparse-2.sh b/tests/cp/sparse-2.sh
index 2104071bd..852d96da7 100755
--- a/tests/cp/sparse-2.sh
+++ b/tests/cp/sparse-2.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Exercise a few more corners of the copying code.
 
-# Copyright (C) 2011-2022 Free Software Foundation, Inc.
+# Copyright (C) 2011-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/cp/sparse-extents-2.sh b/tests/cp/sparse-extents-2.sh
index 37a4477f1..46be86166 100755
--- a/tests/cp/sparse-extents-2.sh
+++ b/tests/cp/sparse-extents-2.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test cp --sparse=always through SEEK_DATA copy
 
-# Copyright (C) 2010-2022 Free Software Foundation, Inc.
+# Copyright (C) 2010-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/cp/sparse-extents.sh b/tests/cp/sparse-extents.sh
index 5216b9599..410116877 100755
--- a/tests/cp/sparse-extents.sh
+++ b/tests/cp/sparse-extents.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test cp handles extents correctly
 
-# Copyright (C) 2011-2022 Free Software Foundation, Inc.
+# Copyright (C) 2011-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/cp/sparse-perf.sh b/tests/cp/sparse-perf.sh
index d529dd135..2ce9359be 100755
--- a/tests/cp/sparse-perf.sh
+++ b/tests/cp/sparse-perf.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # ensure that a sparse file is copied efficiently, by default
 
-# Copyright (C) 2021-2022 Free Software Foundation, Inc.
+# Copyright (C) 2021-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/cp/sparse-to-pipe.sh b/tests/cp/sparse-to-pipe.sh
index 3c3f8f415..5dfba3f92 100755
--- a/tests/cp/sparse-to-pipe.sh
+++ b/tests/cp/sparse-to-pipe.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # copy a sparse file to a pipe, to exercise some seldom-used parts of copy.c
 
-# Copyright (C) 2011-2022 Free Software Foundation, Inc.
+# Copyright (C) 2011-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/cp/sparse.sh b/tests/cp/sparse.sh
index ea5cba426..12a4380bc 100755
--- a/tests/cp/sparse.sh
+++ b/tests/cp/sparse.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test cp --sparse=always
 
-# Copyright (C) 2006-2022 Free Software Foundation, Inc.
+# Copyright (C) 2006-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/cp/special-bits.sh b/tests/cp/special-bits.sh
index 1e4e5b2fc..a9288f5c2 100755
--- a/tests/cp/special-bits.sh
+++ b/tests/cp/special-bits.sh
@@ -2,7 +2,7 @@
 # make sure 'cp -p' preserves special bits
 # This works only when run as root.
 
-# Copyright (C) 2000-2022 Free Software Foundation, Inc.
+# Copyright (C) 2000-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/cp/special-f.sh b/tests/cp/special-f.sh
index 2c7bf5ea7..ed70d7a0c 100755
--- a/tests/cp/special-f.sh
+++ b/tests/cp/special-f.sh
@@ -2,7 +2,7 @@
 # Ensure that "cp -Rf fifo E" unlinks E and retries.
 # Up until coreutils-6.10.171, it would not.
 
-# Copyright (C) 2008-2022 Free Software Foundation, Inc.
+# Copyright (C) 2008-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/cp/src-base-dot.sh b/tests/cp/src-base-dot.sh
index 2e5ac8d5d..70f8921a7 100755
--- a/tests/cp/src-base-dot.sh
+++ b/tests/cp/src-base-dot.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Ensure that "mkdir x y; cd y; cp -ab ../x/. ." is a successful, silent, no-op.
 
-# Copyright (C) 2006-2022 Free Software Foundation, Inc.
+# Copyright (C) 2006-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/cp/symlink-slash.sh b/tests/cp/symlink-slash.sh
index db1b5fb1e..5a8cb4f8a 100755
--- a/tests/cp/symlink-slash.sh
+++ b/tests/cp/symlink-slash.sh
@@ -2,7 +2,7 @@
 # Make sure that cp -dR dereferences a symlink arg if its name is
 # written with a trailing slash.
 
-# Copyright (C) 2000-2022 Free Software Foundation, Inc.
+# Copyright (C) 2000-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/cp/thru-dangling.sh b/tests/cp/thru-dangling.sh
index 44d0b15e8..1cbb12d11 100755
--- a/tests/cp/thru-dangling.sh
+++ b/tests/cp/thru-dangling.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Ensure that cp works as documented, when the destination is a dangling symlink
 
-# Copyright (C) 2007-2022 Free Software Foundation, Inc.
+# Copyright (C) 2007-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/dd/ascii.sh b/tests/dd/ascii.sh
index 56f3b52ad..ccf079f0f 100755
--- a/tests/dd/ascii.sh
+++ b/tests/dd/ascii.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # test conv=ascii
 
-# Copyright (C) 2014-2022 Free Software Foundation, Inc.
+# Copyright (C) 2014-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/dd/bytes.sh b/tests/dd/bytes.sh
index 539f04172..01753d6a0 100755
--- a/tests/dd/bytes.sh
+++ b/tests/dd/bytes.sh
@@ -1,6 +1,6 @@
 #!/bin/sh
 
-# Copyright (C) 2012-2022 Free Software Foundation, Inc.
+# Copyright (C) 2012-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/dd/direct.sh b/tests/dd/direct.sh
index 640f4c4b5..720966b93 100755
--- a/tests/dd/direct.sh
+++ b/tests/dd/direct.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # ensure that dd's iflag=direct and oflag=direct work
 
-# Copyright (C) 2009-2022 Free Software Foundation, Inc.
+# Copyright (C) 2009-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/dd/misc.sh b/tests/dd/misc.sh
index d20cbacc8..695a1ba0f 100755
--- a/tests/dd/misc.sh
+++ b/tests/dd/misc.sh
@@ -2,7 +2,7 @@
 # Ensure dd treats '--' properly.
 # Also test some flag values.
 
-# Copyright (C) 1999-2022 Free Software Foundation, Inc.
+# Copyright (C) 1999-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/dd/no-allocate.sh b/tests/dd/no-allocate.sh
index cedfa796f..5328a4c4c 100755
--- a/tests/dd/no-allocate.sh
+++ b/tests/dd/no-allocate.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # make sure that dd doesn't allocate memory unnecessarily
 
-# Copyright (C) 2013-2022 Free Software Foundation, Inc.
+# Copyright (C) 2013-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/dd/nocache.sh b/tests/dd/nocache.sh
index 3aee114d8..029db661b 100755
--- a/tests/dd/nocache.sh
+++ b/tests/dd/nocache.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Ensure dd handles the 'nocache' flag
 
-# Copyright (C) 2011-2022 Free Software Foundation, Inc.
+# Copyright (C) 2011-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/dd/nocache_eof.sh b/tests/dd/nocache_eof.sh
index 7de765c09..ca36032f1 100755
--- a/tests/dd/nocache_eof.sh
+++ b/tests/dd/nocache_eof.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Ensure dd invalidates to EOF when appropriate
 
-# Copyright (C) 2017-2022 Free Software Foundation, Inc.
+# Copyright (C) 2017-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/dd/not-rewound.sh b/tests/dd/not-rewound.sh
index 60c93c0ca..278e6cacd 100755
--- a/tests/dd/not-rewound.sh
+++ b/tests/dd/not-rewound.sh
@@ -2,7 +2,7 @@
 # Make sure dd does the right thing when the input file descriptor
 # is not rewound.
 
-# Copyright (C) 2000-2022 Free Software Foundation, Inc.
+# Copyright (C) 2000-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/dd/reblock.sh b/tests/dd/reblock.sh
index ce3716c7f..125f0d4e4 100755
--- a/tests/dd/reblock.sh
+++ b/tests/dd/reblock.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # test dd reblocking vs. bs=
 
-# Copyright (C) 2008-2022 Free Software Foundation, Inc.
+# Copyright (C) 2008-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/dd/skip-seek-past-dev.sh b/tests/dd/skip-seek-past-dev.sh
index 55c874187..6e92df375 100755
--- a/tests/dd/skip-seek-past-dev.sh
+++ b/tests/dd/skip-seek-past-dev.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # test diagnostics are printed immediately when seeking beyond device.
 
-# Copyright (C) 2008-2022 Free Software Foundation, Inc.
+# Copyright (C) 2008-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/dd/skip-seek-past-file.sh b/tests/dd/skip-seek-past-file.sh
index e952448e2..943057c0c 100755
--- a/tests/dd/skip-seek-past-file.sh
+++ b/tests/dd/skip-seek-past-file.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # test diagnostics are printed when seeking too far in seekable files.
 
-# Copyright (C) 2008-2022 Free Software Foundation, Inc.
+# Copyright (C) 2008-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/dd/skip-seek.pl b/tests/dd/skip-seek.pl
index 0fcb1cf25..d53daf01f 100755
--- a/tests/dd/skip-seek.pl
+++ b/tests/dd/skip-seek.pl
@@ -1,7 +1,7 @@
 #!/usr/bin/perl
 # Test dd's skip and seek options.
 
-# Copyright (C) 2000-2022 Free Software Foundation, Inc.
+# Copyright (C) 2000-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/dd/skip-seek2.sh b/tests/dd/skip-seek2.sh
index 779e1b2e6..5abdb4c80 100755
--- a/tests/dd/skip-seek2.sh
+++ b/tests/dd/skip-seek2.sh
@@ -2,7 +2,7 @@
 # show how to skip an amount that is smaller than the nominal block size.
 # There's a more realistic example in the documentation.
 
-# Copyright (C) 2000-2022 Free Software Foundation, Inc.
+# Copyright (C) 2000-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/dd/sparse.sh b/tests/dd/sparse.sh
index 87477a05f..c459f4d1a 100755
--- a/tests/dd/sparse.sh
+++ b/tests/dd/sparse.sh
@@ -1,6 +1,6 @@
 #!/bin/sh
 
-# Copyright (C) 2012-2022 Free Software Foundation, Inc.
+# Copyright (C) 2012-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/dd/stats.sh b/tests/dd/stats.sh
index 94df3bd39..d486e71d8 100755
--- a/tests/dd/stats.sh
+++ b/tests/dd/stats.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Check stats output for SIG{INFO,USR1} and status=progress
 
-# Copyright (C) 2014-2022 Free Software Foundation, Inc.
+# Copyright (C) 2014-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/dd/stderr.sh b/tests/dd/stderr.sh
index 93dd5a982..e11770815 100755
--- a/tests/dd/stderr.sh
+++ b/tests/dd/stderr.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Ensure dd recognizes failure to write to stderr.
 
-# Copyright (C) 2009-2022 Free Software Foundation, Inc.
+# Copyright (C) 2009-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/dd/unblock-sync.sh b/tests/dd/unblock-sync.sh
index 213dea01c..323416d27 100755
--- a/tests/dd/unblock-sync.sh
+++ b/tests/dd/unblock-sync.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Ensure that dd conv=unblock,sync works.
 
-# Copyright (C) 2003-2022 Free Software Foundation, Inc.
+# Copyright (C) 2003-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/dd/unblock.pl b/tests/dd/unblock.pl
index 08701b23f..0e7bcc6bc 100755
--- a/tests/dd/unblock.pl
+++ b/tests/dd/unblock.pl
@@ -1,7 +1,7 @@
 #!/usr/bin/perl
 # Exercise dd's conv=unblock mode
 
-# Copyright (C) 2009-2022 Free Software Foundation, Inc.
+# Copyright (C) 2009-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/df/df-P.sh b/tests/df/df-P.sh
index f1ad16757..f51942c13 100755
--- a/tests/df/df-P.sh
+++ b/tests/df/df-P.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Ensure that df -P is not affected by BLOCK_SIZE settings
 
-# Copyright (C) 2007-2022 Free Software Foundation, Inc.
+# Copyright (C) 2007-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/df/df-output.sh b/tests/df/df-output.sh
index f12f8c801..2fda3a788 100755
--- a/tests/df/df-output.sh
+++ b/tests/df/df-output.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Exercise df's --output option.
 
-# Copyright (C) 2012-2022 Free Software Foundation, Inc.
+# Copyright (C) 2012-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/df/df-symlink.sh b/tests/df/df-symlink.sh
index 0ee47d0a6..34e8a8fed 100755
--- a/tests/df/df-symlink.sh
+++ b/tests/df/df-symlink.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Ensure that df dereferences symlinks to file system nodes
 
-# Copyright (C) 2013-2022 Free Software Foundation, Inc.
+# Copyright (C) 2013-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/df/header.sh b/tests/df/header.sh
index b87aff7af..a3a658816 100755
--- a/tests/df/header.sh
+++ b/tests/df/header.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Ensure that "df ." outputs a header.
 
-# Copyright (C) 2006-2022 Free Software Foundation, Inc.
+# Copyright (C) 2006-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/df/no-mtab-status.sh b/tests/df/no-mtab-status.sh
index 036825493..c9b71d01e 100755
--- a/tests/df/no-mtab-status.sh
+++ b/tests/df/no-mtab-status.sh
@@ -2,7 +2,7 @@
 # Test df's behaviour when the mount list cannot be read.
 # This test is skipped on systems that lack LD_PRELOAD support; that's fine.
 
-# Copyright (C) 2012-2022 Free Software Foundation, Inc.
+# Copyright (C) 2012-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/df/over-mount-device.sh b/tests/df/over-mount-device.sh
index 9629f20c6..d6d40ac90 100755
--- a/tests/df/over-mount-device.sh
+++ b/tests/df/over-mount-device.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Ensure that df /dev/loop0 errors out if overmounted by another device
 
-# Copyright (C) 2014-2022 Free Software Foundation, Inc.
+# Copyright (C) 2014-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/df/problematic-chars.sh b/tests/df/problematic-chars.sh
index 7816d42e8..3fb9a4896 100755
--- a/tests/df/problematic-chars.sh
+++ b/tests/df/problematic-chars.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Ensure that df outputs one line per entry
 
-# Copyright (C) 2012-2022 Free Software Foundation, Inc.
+# Copyright (C) 2012-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/df/skip-duplicates.sh b/tests/df/skip-duplicates.sh
index 06f05a009..06c03e805 100755
--- a/tests/df/skip-duplicates.sh
+++ b/tests/df/skip-duplicates.sh
@@ -2,7 +2,7 @@
 # Test df's behavior when the mount list contains duplicate entries.
 # This test is skipped on systems that lack LD_PRELOAD support; that's fine.
 
-# Copyright (C) 2012-2022 Free Software Foundation, Inc.
+# Copyright (C) 2012-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/df/skip-rootfs.sh b/tests/df/skip-rootfs.sh
index dad508911..98e58dfa3 100755
--- a/tests/df/skip-rootfs.sh
+++ b/tests/df/skip-rootfs.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test df's behavior for skipping the pseudo "rootfs" file system.
 
-# Copyright (C) 2012-2022 Free Software Foundation, Inc.
+# Copyright (C) 2012-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/df/total-unprocessed.sh b/tests/df/total-unprocessed.sh
index 696234aa4..eae9d5f9c 100755
--- a/tests/df/total-unprocessed.sh
+++ b/tests/df/total-unprocessed.sh
@@ -2,7 +2,7 @@
 # Ensure that df exits non-Zero and writes an error message when
 # --total is used but no file system has been processed.
 
-# Copyright (C) 2012-2022 Free Software Foundation, Inc.
+# Copyright (C) 2012-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/df/total-verify.sh b/tests/df/total-verify.sh
index 87589d23d..dafc3015e 100755
--- a/tests/df/total-verify.sh
+++ b/tests/df/total-verify.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Ensure "df --total" computes accurate totals
 
-# Copyright (C) 2008-2022 Free Software Foundation, Inc.
+# Copyright (C) 2008-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/df/unreadable.sh b/tests/df/unreadable.sh
index bc04f9477..44bcd1949 100755
--- a/tests/df/unreadable.sh
+++ b/tests/df/unreadable.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # ensure that df can handle an unreadable argument
 
-# Copyright (C) 2009-2022 Free Software Foundation, Inc.
+# Copyright (C) 2009-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/du/2g.sh b/tests/du/2g.sh
index adee75690..fe514a716 100755
--- a/tests/du/2g.sh
+++ b/tests/du/2g.sh
@@ -3,7 +3,7 @@
 # Before coreutils-5.93, on systems with a signed, 32-bit stat.st_blocks
 # one of du's computations would overflow.
 
-# Copyright (C) 2005-2022 Free Software Foundation, Inc.
+# Copyright (C) 2005-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/du/8gb.sh b/tests/du/8gb.sh
index 7d067e537..04173d6ac 100755
--- a/tests/du/8gb.sh
+++ b/tests/du/8gb.sh
@@ -2,7 +2,7 @@
 # Ensure that du does not rely on narrow types like size_t for
 # file sizes or sums.
 
-# Copyright (C) 2003-2022 Free Software Foundation, Inc.
+# Copyright (C) 2003-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/du/basic.sh b/tests/du/basic.sh
index a81e8958b..6d4119b68 100755
--- a/tests/du/basic.sh
+++ b/tests/du/basic.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Compare actual numbers from du, assuming block size matches mine.
 
-# Copyright (C) 2003-2022 Free Software Foundation, Inc.
+# Copyright (C) 2003-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/du/bigtime.sh b/tests/du/bigtime.sh
index 4f8cfa2d4..1ad56ebdc 100755
--- a/tests/du/bigtime.sh
+++ b/tests/du/bigtime.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Exercise du on a file with a big timestamp.
 
-# Copyright (C) 2010-2022 Free Software Foundation, Inc.
+# Copyright (C) 2010-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/du/bind-mount-dir-cycle-v2.sh b/tests/du/bind-mount-dir-cycle-v2.sh
index 60ae8b7e7..18e40d286 100755
--- a/tests/du/bind-mount-dir-cycle-v2.sh
+++ b/tests/du/bind-mount-dir-cycle-v2.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Check that du can handle sub-bind-mounts cycles as well.
 
-# Copyright (C) 2014-2022 Free Software Foundation, Inc.
+# Copyright (C) 2014-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/du/bind-mount-dir-cycle.sh b/tests/du/bind-mount-dir-cycle.sh
index 099566332..f2a74fd3c 100755
--- a/tests/du/bind-mount-dir-cycle.sh
+++ b/tests/du/bind-mount-dir-cycle.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Exercise du's new ability to handle bind-mount-induced dir cycles.
 
-# Copyright (C) 2012-2022 Free Software Foundation, Inc.
+# Copyright (C) 2012-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/du/deref-args.sh b/tests/du/deref-args.sh
index debc50937..64bf6aec5 100755
--- a/tests/du/deref-args.sh
+++ b/tests/du/deref-args.sh
@@ -2,7 +2,7 @@
 # Ensure that --dereference-args (-D) gives reasonable names.
 # This test would fail for coreutils-5.0.91.
 
-# Copyright (C) 2003-2022 Free Software Foundation, Inc.
+# Copyright (C) 2003-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/du/deref.sh b/tests/du/deref.sh
index 5a1085fe4..f16d87a0c 100755
--- a/tests/du/deref.sh
+++ b/tests/du/deref.sh
@@ -4,7 +4,7 @@
 # Also, up to coreutils-8.5, du -L sometimes incorrectly
 # counted the space of the followed symlinks.
 
-# Copyright (C) 2002-2022 Free Software Foundation, Inc.
+# Copyright (C) 2002-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/du/exclude.sh b/tests/du/exclude.sh
index eedf75181..2fea396be 100755
--- a/tests/du/exclude.sh
+++ b/tests/du/exclude.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # make sure du's --exclude option works
 
-# Copyright (C) 2003-2022 Free Software Foundation, Inc.
+# Copyright (C) 2003-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/du/fd-leak.sh b/tests/du/fd-leak.sh
index 9697d000d..4b5c60721 100755
--- a/tests/du/fd-leak.sh
+++ b/tests/du/fd-leak.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # check for file descriptor leak
 
-# Copyright (C) 2003-2022 Free Software Foundation, Inc.
+# Copyright (C) 2003-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/du/files0-from-dir.sh b/tests/du/files0-from-dir.sh
index 44287fe94..352a05932 100755
--- a/tests/du/files0-from-dir.sh
+++ b/tests/du/files0-from-dir.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # ensure that du and wc handle --files0-from=DIR
 
-# Copyright (C) 2011-2022 Free Software Foundation, Inc.
+# Copyright (C) 2011-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/du/files0-from.pl b/tests/du/files0-from.pl
index bdc34209a..ffaae85e2 100755
--- a/tests/du/files0-from.pl
+++ b/tests/du/files0-from.pl
@@ -2,7 +2,7 @@
 # Exercise du's --files0-from option.
 # FIXME: keep this file in sync with tests/misc/wc-files0-from.
 
-# Copyright (C) 2004-2022 Free Software Foundation, Inc.
+# Copyright (C) 2004-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/du/hard-link.sh b/tests/du/hard-link.sh
index 7cd03d3dd..783003ef6 100755
--- a/tests/du/hard-link.sh
+++ b/tests/du/hard-link.sh
@@ -3,7 +3,7 @@
 # Likewise for excluded directories.
 # Ensure that hard links _are_ listed twice when using --count-links.
 
-# Copyright (C) 2003-2022 Free Software Foundation, Inc.
+# Copyright (C) 2003-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/du/inacc-dest.sh b/tests/du/inacc-dest.sh
index b26fd1c01..e6049cabb 100755
--- a/tests/du/inacc-dest.sh
+++ b/tests/du/inacc-dest.sh
@@ -2,7 +2,7 @@
 # Prior to coreutils-6.5, an inaccessible destination dir (chmod a-x)
 # would cause du to exit prematurely on systems with native openat support.
 
-# Copyright (C) 2006-2022 Free Software Foundation, Inc.
+# Copyright (C) 2006-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/du/inacc-dir.sh b/tests/du/inacc-dir.sh
index a5c823e7d..5e320b1f5 100755
--- a/tests/du/inacc-dir.sh
+++ b/tests/du/inacc-dir.sh
@@ -1,6 +1,6 @@
 #!/bin/sh
 # Ensure that du counts the size of an inaccessible directory.
-# Copyright (C) 2007-2022 Free Software Foundation, Inc.
+# Copyright (C) 2007-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/du/inaccessible-cwd.sh b/tests/du/inaccessible-cwd.sh
index 464456d88..be0e6849b 100755
--- a/tests/du/inaccessible-cwd.sh
+++ b/tests/du/inaccessible-cwd.sh
@@ -2,7 +2,7 @@
 # Ensure that even when run from an inaccessible directory, du can still
 # operate on accessible directories elsewhere.
 
-# Copyright (C) 2003-2022 Free Software Foundation, Inc.
+# Copyright (C) 2003-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/du/inodes.sh b/tests/du/inodes.sh
index 008bfe2e9..1067d0e8e 100755
--- a/tests/du/inodes.sh
+++ b/tests/du/inodes.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # exercise du's --inodes option
 
-# Copyright (C) 2010-2022 Free Software Foundation, Inc.
+# Copyright (C) 2010-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/du/long-from-unreadable.sh b/tests/du/long-from-unreadable.sh
index 3a2e19b5c..b7763f444 100755
--- a/tests/du/long-from-unreadable.sh
+++ b/tests/du/long-from-unreadable.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Show fts fails on old-fashioned systems.
 
-# Copyright (C) 2006-2022 Free Software Foundation, Inc.
+# Copyright (C) 2006-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/du/long-sloop.sh b/tests/du/long-sloop.sh
index f93bca8f8..16da216cc 100755
--- a/tests/du/long-sloop.sh
+++ b/tests/du/long-sloop.sh
@@ -3,7 +3,7 @@
 # Show that du fails with ELOOP (Too many levels of symbolic links)
 # when it encounters that condition.
 
-# Copyright (C) 2006-2022 Free Software Foundation, Inc.
+# Copyright (C) 2006-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/du/max-depth.sh b/tests/du/max-depth.sh
index 469926352..c3ac8c60a 100755
--- a/tests/du/max-depth.sh
+++ b/tests/du/max-depth.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # exercise du's --max-depth=N option
 
-# Copyright (C) 2010-2022 Free Software Foundation, Inc.
+# Copyright (C) 2010-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/du/move-dir-while-traversing.sh b/tests/du/move-dir-while-traversing.sh
index a9708dea7..aee906569 100755
--- a/tests/du/move-dir-while-traversing.sh
+++ b/tests/du/move-dir-while-traversing.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Trigger a failed assertion in coreutils-8.9 and earlier.
 
-# Copyright (C) 2011-2022 Free Software Foundation, Inc.
+# Copyright (C) 2011-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/du/no-deref.sh b/tests/du/no-deref.sh
index 4bae93497..afcdc5dba 100755
--- a/tests/du/no-deref.sh
+++ b/tests/du/no-deref.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Ensure that by default, du doesn't dereference command-line symlinks.
 
-# Copyright (C) 2003-2022 Free Software Foundation, Inc.
+# Copyright (C) 2003-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/du/no-x.sh b/tests/du/no-x.sh
index 79920a9da..c21f06ca2 100755
--- a/tests/du/no-x.sh
+++ b/tests/du/no-x.sh
@@ -2,7 +2,7 @@
 # Make sure du gives the right diagnostic for a readable,
 # but inaccessible directory.
 
-# Copyright (C) 2003-2022 Free Software Foundation, Inc.
+# Copyright (C) 2003-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/du/one-file-system.sh b/tests/du/one-file-system.sh
index fff35eab0..cdb868aa5 100755
--- a/tests/du/one-file-system.sh
+++ b/tests/du/one-file-system.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test for bugs in du's --one-file-system (-x) option.
 
-# Copyright (C) 2006-2022 Free Software Foundation, Inc.
+# Copyright (C) 2006-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/du/restore-wd.sh b/tests/du/restore-wd.sh
index c9c506951..e4a87a8be 100755
--- a/tests/du/restore-wd.sh
+++ b/tests/du/restore-wd.sh
@@ -2,7 +2,7 @@
 # due to a bug in glibc's ftw.c, in some cases, nftw w/FTW_CHDIR
 # would not restore the working directory.
 
-# Copyright (C) 2003-2022 Free Software Foundation, Inc.
+# Copyright (C) 2003-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/du/slash.sh b/tests/du/slash.sh
index 6426d1653..e61f26d28 100755
--- a/tests/du/slash.sh
+++ b/tests/du/slash.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # 'du /' would omit the '/' on the last line.
 
-# Copyright (C) 2003-2022 Free Software Foundation, Inc.
+# Copyright (C) 2003-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/du/threshold.sh b/tests/du/threshold.sh
index 270b885ce..b438d29c9 100755
--- a/tests/du/threshold.sh
+++ b/tests/du/threshold.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Exercise du's --threshold option.
 
-# Copyright (C) 2013-2022 Free Software Foundation, Inc.
+# Copyright (C) 2013-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/du/trailing-slash.sh b/tests/du/trailing-slash.sh
index 01b5e619d..bc55fb98b 100755
--- a/tests/du/trailing-slash.sh
+++ b/tests/du/trailing-slash.sh
@@ -2,7 +2,7 @@
 # Ensure that du works properly for an argument that refers to a
 # symbolic link, and that is specified with a trailing slash.
 
-# Copyright (C) 2002-2022 Free Software Foundation, Inc.
+# Copyright (C) 2002-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/du/two-args.sh b/tests/du/two-args.sh
index 01b5e33e2..693d53c13 100755
--- a/tests/du/two-args.sh
+++ b/tests/du/two-args.sh
@@ -2,7 +2,7 @@
 # Make sure 'du d/1 d/2' works.
 # That command failed with du from fileutils-4.0q.
 
-# Copyright (C) 2000-2022 Free Software Foundation, Inc.
+# Copyright (C) 2000-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/envvar-check b/tests/envvar-check
index 56354a0f5..0c9a73064 100644
--- a/tests/envvar-check
+++ b/tests/envvar-check
@@ -1,7 +1,7 @@
 # -*- sh -*-
 # Check environment variables for sane values while testing.
 
-# Copyright (C) 2000-2022 Free Software Foundation, Inc.
+# Copyright (C) 2000-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/factor/create-test.sh b/tests/factor/create-test.sh
index be8248792..25885aafe 100755
--- a/tests/factor/create-test.sh
+++ b/tests/factor/create-test.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Create the factor test scripts.
 
-# Copyright (C) 2012-2022 Free Software Foundation, Inc.
+# Copyright (C) 2012-2023 Free Software Foundation, Inc.
 
 test_name=$1
 template=$2
diff --git a/tests/factor/run.sh b/tests/factor/run.sh
index 4a1dbb01b..1f9be3d74 100755
--- a/tests/factor/run.sh
+++ b/tests/factor/run.sh
@@ -10,7 +10,7 @@
 #
 # See: tests/factor/create-test.sh
 
-# Copyright (C) 2012-2022 Free Software Foundation, Inc.
+# Copyright (C) 2012-2023 Free Software Foundation, Inc.
 
 . "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
 
diff --git a/tests/fmt/base.pl b/tests/fmt/base.pl
index 687934031..667a97d08 100755
--- a/tests/fmt/base.pl
+++ b/tests/fmt/base.pl
@@ -1,7 +1,7 @@
 #!/usr/bin/perl
 # Basic tests for "fmt".
 
-# Copyright (C) 2001-2022 Free Software Foundation, Inc.
+# Copyright (C) 2001-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/fmt/goal-option.sh b/tests/fmt/goal-option.sh
index 9151a6960..60e351263 100755
--- a/tests/fmt/goal-option.sh
+++ b/tests/fmt/goal-option.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Exercise the fmt -g option.
 
-# Copyright (C) 2012-2022 Free Software Foundation, Inc.
+# Copyright (C) 2012-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/fmt/long-line.sh b/tests/fmt/long-line.sh
index 258101ec1..9bfc18177 100755
--- a/tests/fmt/long-line.sh
+++ b/tests/fmt/long-line.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # make sure fmt -s works even on long lines
 
-# Copyright (C) 2002-2022 Free Software Foundation, Inc.
+# Copyright (C) 2002-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/fmt/non-space.sh b/tests/fmt/non-space.sh
index 093c9393a..584e8b16d 100755
--- a/tests/fmt/non-space.sh
+++ b/tests/fmt/non-space.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test fmt space handling
 
-# Copyright (C) 2022 Free Software Foundation, Inc.
+# Copyright (C) 2022-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/id/context.sh b/tests/id/context.sh
index fadf8c2f3..ad7867bd7 100755
--- a/tests/id/context.sh
+++ b/tests/id/context.sh
@@ -1,6 +1,6 @@
 #!/bin/sh
 # Ensure that "id" outputs SELinux context only without specified user
-# Copyright (C) 2008-2022 Free Software Foundation, Inc.
+# Copyright (C) 2008-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/id/gnu-zero-uids.sh b/tests/id/gnu-zero-uids.sh
index 4ea8b6504..10e028f21 100755
--- a/tests/id/gnu-zero-uids.sh
+++ b/tests/id/gnu-zero-uids.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # On GNU, 'id' must fail for processes with zero UIDs.
 
-# Copyright (C) 2011-2022 Free Software Foundation, Inc.
+# Copyright (C) 2011-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/id/no-context.sh b/tests/id/no-context.sh
index 7a2167d9d..449938b76 100755
--- a/tests/id/no-context.sh
+++ b/tests/id/no-context.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # With POSIXLY_CORRECT, id must not print context=...
 
-# Copyright (C) 2009-2022 Free Software Foundation, Inc.
+# Copyright (C) 2009-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/id/setgid.sh b/tests/id/setgid.sh
index e447c60b4..f106b13a1 100755
--- a/tests/id/setgid.sh
+++ b/tests/id/setgid.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Verify that id [-G] prints the right group when run set-GID.
 
-# Copyright (C) 2012-2022 Free Software Foundation, Inc.
+# Copyright (C) 2012-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/id/smack.sh b/tests/id/smack.sh
index 8b9ecc594..d86726eb3 100755
--- a/tests/id/smack.sh
+++ b/tests/id/smack.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # SMACK test for the id-command.
 # Derived from tests/id/context.sh and tests/id/no-context.sh.
-# Copyright (C) 2014-2022 Free Software Foundation, Inc.
+# Copyright (C) 2014-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/id/uid.sh b/tests/id/uid.sh
index 7208544f5..41353a886 100755
--- a/tests/id/uid.sh
+++ b/tests/id/uid.sh
@@ -1,6 +1,6 @@
 #!/bin/sh
 # Ensure that "id" works with numeric user ids
-# Copyright (C) 2013-2022 Free Software Foundation, Inc.
+# Copyright (C) 2013-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/id/zero.sh b/tests/id/zero.sh
index 0979a3f85..3813fcd5e 100755
--- a/tests/id/zero.sh
+++ b/tests/id/zero.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Exercise "id --zero".
 
-# Copyright (C) 2013-2022 Free Software Foundation, Inc.
+# Copyright (C) 2013-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/init.sh b/tests/init.sh
index 7d6afd16e..6c0939286 100755
--- a/tests/init.sh
+++ b/tests/init.sh
@@ -1,6 +1,6 @@
 # source this file; set up for tests
 
-# Copyright (C) 2009-2022 Free Software Foundation, Inc.
+# Copyright (C) 2009-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/install/basic-1.sh b/tests/install/basic-1.sh
index 690d591e5..349c1a7d6 100755
--- a/tests/install/basic-1.sh
+++ b/tests/install/basic-1.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Basic tests for "install".
 
-# Copyright (C) 1998-2022 Free Software Foundation, Inc.
+# Copyright (C) 1998-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/install/create-leading.sh b/tests/install/create-leading.sh
index 61f447ae9..8dcfdb154 100755
--- a/tests/install/create-leading.sh
+++ b/tests/install/create-leading.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test -D option.
 
-# Copyright (C) 2000-2022 Free Software Foundation, Inc.
+# Copyright (C) 2000-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/install/d-slashdot.sh b/tests/install/d-slashdot.sh
index 13ab3fa02..e86a934c3 100755
--- a/tests/install/d-slashdot.sh
+++ b/tests/install/d-slashdot.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Ensure that ginstall -d works with arguments specified with a trailing "/.".
 
-# Copyright (C) 2005-2022 Free Software Foundation, Inc.
+# Copyright (C) 2005-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/install/install-C-root.sh b/tests/install/install-C-root.sh
index e96ac52b3..edf6e7e46 100755
--- a/tests/install/install-C-root.sh
+++ b/tests/install/install-C-root.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Ensure "install -C" compares owner and group.
 
-# Copyright (C) 2008-2022 Free Software Foundation, Inc.
+# Copyright (C) 2008-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/install/install-C-selinux.sh b/tests/install/install-C-selinux.sh
index 9433d3067..8441c074d 100755
--- a/tests/install/install-C-selinux.sh
+++ b/tests/install/install-C-selinux.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Ensure "install -C" compares SELinux context.
 
-# Copyright (C) 2008-2022 Free Software Foundation, Inc.
+# Copyright (C) 2008-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/install/install-C.sh b/tests/install/install-C.sh
index 748d5a2a7..9f49ca6d8 100755
--- a/tests/install/install-C.sh
+++ b/tests/install/install-C.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Ensure "install -C" works. (basic tests)
 
-# Copyright (C) 2008-2022 Free Software Foundation, Inc.
+# Copyright (C) 2008-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/install/install-Z-selinux.sh b/tests/install/install-Z-selinux.sh
index 05aaf89e9..f291d8f08 100755
--- a/tests/install/install-Z-selinux.sh
+++ b/tests/install/install-Z-selinux.sh
@@ -2,7 +2,7 @@
 # test 'install -Z -D' and 'install -Z -d'
 # based on tests/mkdir/restorecon.sh
 
-# Copyright (C) 2013-2022 Free Software Foundation, Inc.
+# Copyright (C) 2013-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/install/strip-program.sh b/tests/install/strip-program.sh
index 1c7048174..0a702f7fa 100755
--- a/tests/install/strip-program.sh
+++ b/tests/install/strip-program.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Ensure "install -s --strip-program=PROGRAM" uses the program to strip
 
-# Copyright (C) 2008-2022 Free Software Foundation, Inc.
+# Copyright (C) 2008-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/install/trap.sh b/tests/install/trap.sh
index 5af999c89..4e1c5eba2 100755
--- a/tests/install/trap.sh
+++ b/tests/install/trap.sh
@@ -2,7 +2,7 @@
 # Ensure that 'install -s' doesn't infloop when its parent
 # process traps CHLD signal.
 
-# Copyright (C) 2004-2022 Free Software Foundation, Inc.
+# Copyright (C) 2004-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/ln/backup-1.sh b/tests/ln/backup-1.sh
index 7ae4f73f5..0874d9d47 100755
--- a/tests/ln/backup-1.sh
+++ b/tests/ln/backup-1.sh
@@ -2,7 +2,7 @@
 # Try to create a symlink with backup where the destination file exists
 # and the backup file name is a hard link to the destination file.
 
-# Copyright (C) 1999-2022 Free Software Foundation, Inc.
+# Copyright (C) 1999-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/ln/hard-backup.sh b/tests/ln/hard-backup.sh
index 2d7206588..855fab52f 100755
--- a/tests/ln/hard-backup.sh
+++ b/tests/ln/hard-backup.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Ensure that 'ln --backup F F' gives a proper diagnostic.
 
-# Copyright (C) 2006-2022 Free Software Foundation, Inc.
+# Copyright (C) 2006-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/ln/hard-to-sym.sh b/tests/ln/hard-to-sym.sh
index daba9e7d3..e4585537f 100755
--- a/tests/ln/hard-to-sym.sh
+++ b/tests/ln/hard-to-sym.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Tests for ln -L/-P.
 
-# Copyright (C) 2009-2022 Free Software Foundation, Inc.
+# Copyright (C) 2009-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/ln/misc.sh b/tests/ln/misc.sh
index 9604a71b2..e509c1ccc 100755
--- a/tests/ln/misc.sh
+++ b/tests/ln/misc.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Miscellaneous tests for "ln".
 
-# Copyright (C) 1998-2022 Free Software Foundation, Inc.
+# Copyright (C) 1998-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/ln/relative.sh b/tests/ln/relative.sh
index f66be2287..73bfd9e07 100755
--- a/tests/ln/relative.sh
+++ b/tests/ln/relative.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test "ln --relative".
 
-# Copyright (C) 2012-2022 Free Software Foundation, Inc.
+# Copyright (C) 2012-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/ln/sf-1.sh b/tests/ln/sf-1.sh
index 1c9f5dd96..e7781ebf7 100755
--- a/tests/ln/sf-1.sh
+++ b/tests/ln/sf-1.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test "ln -sf".
 
-# Copyright (C) 1997-2022 Free Software Foundation, Inc.
+# Copyright (C) 1997-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/ln/slash-decorated-nonexistent-dest.sh b/tests/ln/slash-decorated-nonexistent-dest.sh
index bc3493091..8e872d40d 100755
--- a/tests/ln/slash-decorated-nonexistent-dest.sh
+++ b/tests/ln/slash-decorated-nonexistent-dest.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # ensure that touch f; ln -T f no-such-file/ does not mistakenly succeed
 
-# Copyright (C) 2009-2022 Free Software Foundation, Inc.
+# Copyright (C) 2009-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/ln/target-1.sh b/tests/ln/target-1.sh
index 32c57c1d7..59e3b46a5 100755
--- a/tests/ln/target-1.sh
+++ b/tests/ln/target-1.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test "ln --target-dir" with one file.
 
-# Copyright (C) 2002-2022 Free Software Foundation, Inc.
+# Copyright (C) 2002-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/local.mk b/tests/local.mk
index 895797bf9..86908ef4f 100644
--- a/tests/local.mk
+++ b/tests/local.mk
@@ -1,6 +1,6 @@
 ## Process this file with automake to produce Makefile.in -*-Makefile-*-.
 
-## Copyright (C) 2007-2022 Free Software Foundation, Inc.
+## Copyright (C) 2007-2023 Free Software Foundation, Inc.
 
 ## This program is free software: you can redistribute it and/or modify
 ## it under the terms of the GNU General Public License as published by
diff --git a/tests/ls/a-option.sh b/tests/ls/a-option.sh
index 0c85e0b0f..c1546661f 100755
--- a/tests/ls/a-option.sh
+++ b/tests/ls/a-option.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # exercise the -a option
 
-# Copyright 2018-2022 Free Software Foundation, Inc.
+# Copyright 2018-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/ls/abmon-align.sh b/tests/ls/abmon-align.sh
index 0ad5f3aba..73308dcf3 100755
--- a/tests/ls/abmon-align.sh
+++ b/tests/ls/abmon-align.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Ensure ls output is aligned when using abbreviated months from the locale
 
-# Copyright (C) 2009-2022 Free Software Foundation, Inc.
+# Copyright (C) 2009-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/ls/birthtime.sh b/tests/ls/birthtime.sh
index ddb565358..7f6347ff7 100755
--- a/tests/ls/birthtime.sh
+++ b/tests/ls/birthtime.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # ensure that ls attempts birthtime access
 
-# Copyright (C) 2020-2022 Free Software Foundation, Inc.
+# Copyright (C) 2020-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/ls/block-size.sh b/tests/ls/block-size.sh
index 7485e5eee..3dfd5fec9 100755
--- a/tests/ls/block-size.sh
+++ b/tests/ls/block-size.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Exercise ls --block-size and related options.
 
-# Copyright (C) 2011-2022 Free Software Foundation, Inc.
+# Copyright (C) 2011-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/ls/capability.sh b/tests/ls/capability.sh
index 8e2fc7849..0ccceda3a 100755
--- a/tests/ls/capability.sh
+++ b/tests/ls/capability.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Ensure "ls --color" properly colors name of file with capability.
 
-# Copyright (C) 2008-2022 Free Software Foundation, Inc.
+# Copyright (C) 2008-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/ls/classify.sh b/tests/ls/classify.sh
index e1c73e46f..8645ab55b 100755
--- a/tests/ls/classify.sh
+++ b/tests/ls/classify.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test --classify processing
 
-# Copyright (C) 2020-2022 Free Software Foundation, Inc.
+# Copyright (C) 2020-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/ls/color-clear-to-eol.sh b/tests/ls/color-clear-to-eol.sh
index d8d502e10..dc4bcd2c0 100755
--- a/tests/ls/color-clear-to-eol.sh
+++ b/tests/ls/color-clear-to-eol.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # ensure that ls --color works well when a colored name is wrapped
 
-# Copyright (C) 2009-2022 Free Software Foundation, Inc.
+# Copyright (C) 2009-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/ls/color-dtype-dir.sh b/tests/ls/color-dtype-dir.sh
index 857faef72..d51cbaf17 100755
--- a/tests/ls/color-dtype-dir.sh
+++ b/tests/ls/color-dtype-dir.sh
@@ -4,7 +4,7 @@
 # directories the same as the first one -- but only on a file system
 # with dirent.d_type support.
 
-# Copyright (C) 2006-2022 Free Software Foundation, Inc.
+# Copyright (C) 2006-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/ls/color-ext.sh b/tests/ls/color-ext.sh
index c9d3c0afb..091895c9f 100755
--- a/tests/ls/color-ext.sh
+++ b/tests/ls/color-ext.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Ensure "ls --color" properly colors file name extensions.
 
-# Copyright (C) 2018-2022 Free Software Foundation, Inc.
+# Copyright (C) 2018-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/ls/color-norm.sh b/tests/ls/color-norm.sh
index 6c9c3f690..09b52f3bb 100755
--- a/tests/ls/color-norm.sh
+++ b/tests/ls/color-norm.sh
@@ -3,7 +3,7 @@
 # I.e., that it uses NORMAL to style non file name output and
 # file names with no associated color (unless FILE is also set).
 
-# Copyright (C) 2010-2022 Free Software Foundation, Inc.
+# Copyright (C) 2010-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/ls/color-term.sh b/tests/ls/color-term.sh
index 06c06c138..3e5aca04a 100755
--- a/tests/ls/color-term.sh
+++ b/tests/ls/color-term.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Ensure "ls --color" doesn't output colors for TERM=dumb
 
-# Copyright (C) 2014-2022 Free Software Foundation, Inc.
+# Copyright (C) 2014-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/ls/dangle.sh b/tests/ls/dangle.sh
index 8e89afe31..0e59e8627 100755
--- a/tests/ls/dangle.sh
+++ b/tests/ls/dangle.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Make sure ls properly handles dangling symlinks vs. ls's -L, -H, options.
 
-# Copyright (C) 2003-2022 Free Software Foundation, Inc.
+# Copyright (C) 2003-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/ls/dired.sh b/tests/ls/dired.sh
index 1b67c1a93..150fff206 100755
--- a/tests/ls/dired.sh
+++ b/tests/ls/dired.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # make sure --dired option works
 
-# Copyright (C) 2001-2022 Free Software Foundation, Inc.
+# Copyright (C) 2001-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/ls/file-type.sh b/tests/ls/file-type.sh
index 430637eff..1df2074c3 100755
--- a/tests/ls/file-type.sh
+++ b/tests/ls/file-type.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # contrast ls -F, ls -p, and ls --indicator-style=file-type
 
-# Copyright (C) 2002-2022 Free Software Foundation, Inc.
+# Copyright (C) 2002-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/ls/follow-slink.sh b/tests/ls/follow-slink.sh
index 7f3eb1918..38ee0afe6 100755
--- a/tests/ls/follow-slink.sh
+++ b/tests/ls/follow-slink.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # make sure ls -L always follows symlinks
 
-# Copyright (C) 2000-2022 Free Software Foundation, Inc.
+# Copyright (C) 2000-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/ls/getxattr-speedup.sh b/tests/ls/getxattr-speedup.sh
index bd8ec5e40..5665e398b 100755
--- a/tests/ls/getxattr-speedup.sh
+++ b/tests/ls/getxattr-speedup.sh
@@ -4,7 +4,7 @@
 # This test is skipped on systems that lack LD_PRELOAD support; that's fine.
 # Similarly, on a system that lacks getxattr altogether, skipping it is fine.
 
-# Copyright (C) 2012-2022 Free Software Foundation, Inc.
+# Copyright (C) 2012-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/ls/group-dirs.sh b/tests/ls/group-dirs.sh
index 6521142cd..c13a94e7a 100755
--- a/tests/ls/group-dirs.sh
+++ b/tests/ls/group-dirs.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # test --group-directories-first
 
-# Copyright (C) 2018-2022 Free Software Foundation, Inc.
+# Copyright (C) 2018-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/ls/hex-option.sh b/tests/ls/hex-option.sh
index 0f9d774fd..2a09309c1 100755
--- a/tests/ls/hex-option.sh
+++ b/tests/ls/hex-option.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # accept hex/oct numbers to -w and -T
 
-# Copyright (C) 2014-2022 Free Software Foundation, Inc.
+# Copyright (C) 2014-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/ls/hyperlink.sh b/tests/ls/hyperlink.sh
index 27c775777..970e062a3 100755
--- a/tests/ls/hyperlink.sh
+++ b/tests/ls/hyperlink.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test --hyperlink processing
 
-# Copyright (C) 2017-2022 Free Software Foundation, Inc.
+# Copyright (C) 2017-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/ls/infloop.sh b/tests/ls/infloop.sh
index f31473766..d59ba8198 100755
--- a/tests/ls/infloop.sh
+++ b/tests/ls/infloop.sh
@@ -2,7 +2,7 @@
 # show that the following no longer makes ls infloop
 # mkdir loop; cd loop; ln -s ../loop sub; ls -RL
 # Also ensure ls exits with status = 2 in that case.
-# Copyright (C) 2001-2022 Free Software Foundation, Inc.
+# Copyright (C) 2001-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/ls/inode.sh b/tests/ls/inode.sh
index 807ec29fc..5060a9668 100755
--- a/tests/ls/inode.sh
+++ b/tests/ls/inode.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Make sure that ls -i works properly on symlinks.
 
-# Copyright (C) 2003-2022 Free Software Foundation, Inc.
+# Copyright (C) 2003-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/ls/m-option.sh b/tests/ls/m-option.sh
index eba7df9e1..3b8cdcdfd 100755
--- a/tests/ls/m-option.sh
+++ b/tests/ls/m-option.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # exercise the -m option
 
-# Copyright (C) 2003-2022 Free Software Foundation, Inc.
+# Copyright (C) 2003-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/ls/multihardlink.sh b/tests/ls/multihardlink.sh
index c3787a860..0d3598113 100755
--- a/tests/ls/multihardlink.sh
+++ b/tests/ls/multihardlink.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Ensure "ls --color" properly colors names of hard linked files.
 
-# Copyright (C) 2008-2022 Free Software Foundation, Inc.
+# Copyright (C) 2008-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/ls/nameless-uid.sh b/tests/ls/nameless-uid.sh
index 8071456c5..94cdf4051 100755
--- a/tests/ls/nameless-uid.sh
+++ b/tests/ls/nameless-uid.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Ensure that ls -l works on files with nameless uid and/or gid
 
-# Copyright (C) 2006-2022 Free Software Foundation, Inc.
+# Copyright (C) 2006-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/ls/no-arg.sh b/tests/ls/no-arg.sh
index e9d2f2518..bb72d833f 100755
--- a/tests/ls/no-arg.sh
+++ b/tests/ls/no-arg.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # make sure ls and 'ls -R' do the right thing when invoked with no arguments.
 
-# Copyright (C) 2001-2022 Free Software Foundation, Inc.
+# Copyright (C) 2001-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/ls/no-cap.sh b/tests/ls/no-cap.sh
index 864e4a573..bee7beea0 100755
--- a/tests/ls/no-cap.sh
+++ b/tests/ls/no-cap.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # ensure that an empty "ca=" attribute disables ls's capability-checking
 
-# Copyright (C) 2008-2022 Free Software Foundation, Inc.
+# Copyright (C) 2008-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/ls/quote-align.sh b/tests/ls/quote-align.sh
index 56b6095b8..54a6fd012 100755
--- a/tests/ls/quote-align.sh
+++ b/tests/ls/quote-align.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # test quote alignment combinations
 
-# Copyright (C) 2016-2022 Free Software Foundation, Inc.
+# Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/ls/readdir-mountpoint-inode.sh b/tests/ls/readdir-mountpoint-inode.sh
index e6162bb5e..18c5d5374 100755
--- a/tests/ls/readdir-mountpoint-inode.sh
+++ b/tests/ls/readdir-mountpoint-inode.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # ensure that ls -i works also for mount points
 
-# Copyright (C) 2009-2022 Free Software Foundation, Inc.
+# Copyright (C) 2009-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/ls/recursive.sh b/tests/ls/recursive.sh
index db00a74a9..16554a816 100755
--- a/tests/ls/recursive.sh
+++ b/tests/ls/recursive.sh
@@ -2,7 +2,7 @@
 # 4.1.1 and 4.1.2 had a bug whereby some recursive listings
 # didn't include a blank line between per-directory groups of files.
 
-# Copyright (C) 2001-2022 Free Software Foundation, Inc.
+# Copyright (C) 2001-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/ls/removed-directory.sh b/tests/ls/removed-directory.sh
index 85339ca1a..692d05dc7 100755
--- a/tests/ls/removed-directory.sh
+++ b/tests/ls/removed-directory.sh
@@ -3,7 +3,7 @@
 # current working directory has been removed by another process), it
 # should not emit an error message merely because the directory is removed.
 
-# Copyright (C) 2020-2022 Free Software Foundation, Inc.
+# Copyright (C) 2020-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/ls/root-rel-symlink-color.sh b/tests/ls/root-rel-symlink-color.sh
index c6da9a156..d8663e458 100755
--- a/tests/ls/root-rel-symlink-color.sh
+++ b/tests/ls/root-rel-symlink-color.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Exercise the 8.17 ls bug with coloring relative-named symlinks in "/".
 
-# Copyright (C) 2012-2022 Free Software Foundation, Inc.
+# Copyright (C) 2012-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/ls/rt-1.sh b/tests/ls/rt-1.sh
index 2124be8a8..4a8b948cf 100755
--- a/tests/ls/rt-1.sh
+++ b/tests/ls/rt-1.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Make sure name is used as secondary key when sorting on mtime or ctime.
 
-# Copyright (C) 1998-2022 Free Software Foundation, Inc.
+# Copyright (C) 1998-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/ls/selinux-segfault.sh b/tests/ls/selinux-segfault.sh
index c07197834..4e0d551c5 100755
--- a/tests/ls/selinux-segfault.sh
+++ b/tests/ls/selinux-segfault.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Ensure we don't segfault in selinux handling
 
-# Copyright (C) 2008-2022 Free Software Foundation, Inc.
+# Copyright (C) 2008-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/ls/slink-acl.sh b/tests/ls/slink-acl.sh
index 2b6cf2cdf..ab9fb8f34 100755
--- a/tests/ls/slink-acl.sh
+++ b/tests/ls/slink-acl.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # verify that ls -lL works when applied to a symlink to an ACL'd file
 
-# Copyright (C) 2011-2022 Free Software Foundation, Inc.
+# Copyright (C) 2011-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/ls/sort-width-option.sh b/tests/ls/sort-width-option.sh
index 3ab0f69a8..bffd2e97e 100755
--- a/tests/ls/sort-width-option.sh
+++ b/tests/ls/sort-width-option.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Exercise the --sort=width option.
 
-# Copyright (C) 2021-2022 Free Software Foundation, Inc.
+# Copyright (C) 2021-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/ls/stat-dtype.sh b/tests/ls/stat-dtype.sh
index f50035810..794fcefed 100755
--- a/tests/ls/stat-dtype.sh
+++ b/tests/ls/stat-dtype.sh
@@ -3,7 +3,7 @@
 # Also check for the dtype-related (and fs-type dependent) bug
 # in coreutils-6.0 that made ls -CF columns misaligned.
 
-# Copyright (C) 2006-2022 Free Software Foundation, Inc.
+# Copyright (C) 2006-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/ls/stat-failed.sh b/tests/ls/stat-failed.sh
index d7bbed5af..642ac4a08 100755
--- a/tests/ls/stat-failed.sh
+++ b/tests/ls/stat-failed.sh
@@ -2,7 +2,7 @@
 # Verify that ls works properly when it fails to stat a file that is
 # not mentioned on the command line.
 
-# Copyright (C) 2006-2022 Free Software Foundation, Inc.
+# Copyright (C) 2006-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/ls/stat-free-color.sh b/tests/ls/stat-free-color.sh
index c00787620..b7da43f89 100755
--- a/tests/ls/stat-free-color.sh
+++ b/tests/ls/stat-free-color.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Show that --color need not use stat, as long as we have d_type support.
 
-# Copyright (C) 2011-2022 Free Software Foundation, Inc.
+# Copyright (C) 2011-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/ls/stat-free-symlinks.sh b/tests/ls/stat-free-symlinks.sh
index 706d41524..c9ab67ec4 100755
--- a/tests/ls/stat-free-symlinks.sh
+++ b/tests/ls/stat-free-symlinks.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # ensure that ls does not stat a symlink in an unusual case
 
-# Copyright (C) 2007-2022 Free Software Foundation, Inc.
+# Copyright (C) 2007-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/ls/stat-vs-dirent.sh b/tests/ls/stat-vs-dirent.sh
index 08ec48613..b29889c55 100755
--- a/tests/ls/stat-vs-dirent.sh
+++ b/tests/ls/stat-vs-dirent.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Ensure that d_ino (from ls -di) and st_ino (from stat --format=%i) match.
 
-# Copyright (C) 2006-2022 Free Software Foundation, Inc.
+# Copyright (C) 2006-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/ls/symlink-quote.sh b/tests/ls/symlink-quote.sh
index 43e1546d9..ba45de5e9 100755
--- a/tests/ls/symlink-quote.sh
+++ b/tests/ls/symlink-quote.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Ensure symlinks are quoted appropriately
 
-# Copyright (C) 2017-2022 Free Software Foundation, Inc.
+# Copyright (C) 2017-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/ls/symlink-slash.sh b/tests/ls/symlink-slash.sh
index ba3c6a587..f62e44d05 100755
--- a/tests/ls/symlink-slash.sh
+++ b/tests/ls/symlink-slash.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Do dereference a symlink arg if its name is written with a trailing slash.
 
-# Copyright (C) 1999-2022 Free Software Foundation, Inc.
+# Copyright (C) 1999-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/ls/time-style-diag.sh b/tests/ls/time-style-diag.sh
index 2e6817e01..af53ba38e 100755
--- a/tests/ls/time-style-diag.sh
+++ b/tests/ls/time-style-diag.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Ensure that an invalid --time-style=ARG is diagnosed the way we want.
 
-# Copyright (C) 2011-2022 Free Software Foundation, Inc.
+# Copyright (C) 2011-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/ls/w-option.sh b/tests/ls/w-option.sh
index 81aaf48c0..555e98c84 100755
--- a/tests/ls/w-option.sh
+++ b/tests/ls/w-option.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # exercise the -w option
 
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/ls/x-option.sh b/tests/ls/x-option.sh
index 6e232b14f..30c2e7cf5 100755
--- a/tests/ls/x-option.sh
+++ b/tests/ls/x-option.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Exercise the -x option.
 
-# Copyright (C) 2007-2022 Free Software Foundation, Inc.
+# Copyright (C) 2007-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/ls/zero-option.sh b/tests/ls/zero-option.sh
index 28205e10c..6a53d6045 100755
--- a/tests/ls/zero-option.sh
+++ b/tests/ls/zero-option.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Verify behavior of ls --zero.
 
-# Copyright 2021-2022 Free Software Foundation, Inc.
+# Copyright 2021-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/arch.sh b/tests/misc/arch.sh
index c50b3246f..ec240d1d3 100755
--- a/tests/misc/arch.sh
+++ b/tests/misc/arch.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Ensure that arch output is equal to uname -m
 
-# Copyright (C) 2007-2022 Free Software Foundation, Inc.
+# Copyright (C) 2007-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/b2sum.sh b/tests/misc/b2sum.sh
index 30897021d..6a2d13024 100755
--- a/tests/misc/b2sum.sh
+++ b/tests/misc/b2sum.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # 'b2sum' tests
 
-# Copyright (C) 2016-2022 Free Software Foundation, Inc.
+# Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/base64.pl b/tests/misc/base64.pl
index 955ce32b7..63e6c6b44 100755
--- a/tests/misc/base64.pl
+++ b/tests/misc/base64.pl
@@ -1,7 +1,7 @@
 #!/usr/bin/perl
 # Exercise base{32,64}.
 
-# Copyright (C) 2006-2022 Free Software Foundation, Inc.
+# Copyright (C) 2006-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/basename.pl b/tests/misc/basename.pl
index 4be49496a..4f76a21c1 100755
--- a/tests/misc/basename.pl
+++ b/tests/misc/basename.pl
@@ -1,6 +1,6 @@
 #!/usr/bin/perl
 # Test basename.
-# Copyright (C) 2006-2022 Free Software Foundation, Inc.
+# Copyright (C) 2006-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/basenc.pl b/tests/misc/basenc.pl
index d324d180c..de20d2dbc 100755
--- a/tests/misc/basenc.pl
+++ b/tests/misc/basenc.pl
@@ -1,7 +1,7 @@
 #!/usr/bin/perl
 # Exercise basenc.
 
-# Copyright (C) 2006-2022 Free Software Foundation, Inc.
+# Copyright (C) 2006-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/cat-E.sh b/tests/misc/cat-E.sh
index 46d52bc9b..28c02c1d9 100755
--- a/tests/misc/cat-E.sh
+++ b/tests/misc/cat-E.sh
@@ -1,5 +1,5 @@
 #!/bin/sh
-# Copyright (C) 2021-2022 Free Software Foundation, Inc.
+# Copyright (C) 2021-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/cat-buf.sh b/tests/misc/cat-buf.sh
index e075d2258..c8bd69758 100755
--- a/tests/misc/cat-buf.sh
+++ b/tests/misc/cat-buf.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Ensure that cat outputs processed data immediately.
 
-# Copyright (C) 2009-2022 Free Software Foundation, Inc.
+# Copyright (C) 2009-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/cat-proc.sh b/tests/misc/cat-proc.sh
index 44dbe9aff..b5b0e5726 100755
--- a/tests/misc/cat-proc.sh
+++ b/tests/misc/cat-proc.sh
@@ -2,7 +2,7 @@
 # Ensure that cat -E produces same output as cat, modulo '$'s,
 # even when applied to a file in /proc.
 
-# Copyright (C) 2006-2022 Free Software Foundation, Inc.
+# Copyright (C) 2006-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/cat-self.sh b/tests/misc/cat-self.sh
index cd3b9cb04..ff2afdcf4 100755
--- a/tests/misc/cat-self.sh
+++ b/tests/misc/cat-self.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Check that cat operates correctly when the input is the same as the output.
 
-# Copyright 2014-2022 Free Software Foundation, Inc.
+# Copyright 2014-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/chcon-fail.sh b/tests/misc/chcon-fail.sh
index ddec41c30..e70417d79 100755
--- a/tests/misc/chcon-fail.sh
+++ b/tests/misc/chcon-fail.sh
@@ -2,7 +2,7 @@
 # Ensure that chcon fails when it should.
 # These tests don't use any actual SE Linux syscalls.
 
-# Copyright (C) 2007-2022 Free Software Foundation, Inc.
+# Copyright (C) 2007-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/chcon.sh b/tests/misc/chcon.sh
index 19ccb2957..7028a95e1 100755
--- a/tests/misc/chcon.sh
+++ b/tests/misc/chcon.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # exercise chcon
 
-# Copyright (C) 2007-2022 Free Software Foundation, Inc.
+# Copyright (C) 2007-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/chroot-credentials.sh b/tests/misc/chroot-credentials.sh
index fd7cc9fef..19f42197d 100755
--- a/tests/misc/chroot-credentials.sh
+++ b/tests/misc/chroot-credentials.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Verify that the credentials are changed correctly.
 
-# Copyright (C) 2009-2022 Free Software Foundation, Inc.
+# Copyright (C) 2009-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/chroot-fail.sh b/tests/misc/chroot-fail.sh
index 77df64fa6..e5d671efd 100755
--- a/tests/misc/chroot-fail.sh
+++ b/tests/misc/chroot-fail.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Verify that internal failure in chroot gives exact status.
 
-# Copyright (C) 2009-2022 Free Software Foundation, Inc.
+# Copyright (C) 2009-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/cksum-a.sh b/tests/misc/cksum-a.sh
index 34b6d4d93..712c7ff16 100755
--- a/tests/misc/cksum-a.sh
+++ b/tests/misc/cksum-a.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Validate cksum --algorithm operation
 
-# Copyright (C) 2021-2022 Free Software Foundation, Inc.
+# Copyright (C) 2021-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/cksum-c.sh b/tests/misc/cksum-c.sh
index c342ea841..ed48cbe8a 100755
--- a/tests/misc/cksum-c.sh
+++ b/tests/misc/cksum-c.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Validate cksum --check dynamic operation
 
-# Copyright (C) 2021-2022 Free Software Foundation, Inc.
+# Copyright (C) 2021-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/cksum.sh b/tests/misc/cksum.sh
index da7e4d5eb..21869fa7a 100755
--- a/tests/misc/cksum.sh
+++ b/tests/misc/cksum.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Validate cksum operation
 
-# Copyright (C) 2020-2022 Free Software Foundation, Inc.
+# Copyright (C) 2020-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/close-stdout.sh b/tests/misc/close-stdout.sh
index 38b403897..4bff9e263 100755
--- a/tests/misc/close-stdout.sh
+++ b/tests/misc/close-stdout.sh
@@ -2,7 +2,7 @@
 # Ensure that several programs work fine, even with stdout initially closed.
 # This is effectively a test of closeout.c's close_stdout function.
 
-# Copyright (C) 2004-2022 Free Software Foundation, Inc.
+# Copyright (C) 2004-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/comm.pl b/tests/misc/comm.pl
index 5d0c4f175..5de60ac33 100755
--- a/tests/misc/comm.pl
+++ b/tests/misc/comm.pl
@@ -2,7 +2,7 @@
 # -*- perl -*-
 # Test comm
 
-# Copyright (C) 2008-2022 Free Software Foundation, Inc.
+# Copyright (C) 2008-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/coreutils.sh b/tests/misc/coreutils.sh
index 8bdd6b102..ffcce84b5 100755
--- a/tests/misc/coreutils.sh
+++ b/tests/misc/coreutils.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Verify behavior of separate coreutils multicall binary
 
-# Copyright (C) 2014-2022 Free Software Foundation, Inc.
+# Copyright (C) 2014-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/csplit-1000.sh b/tests/misc/csplit-1000.sh
index 36c32b0a4..bc34a24ea 100755
--- a/tests/misc/csplit-1000.sh
+++ b/tests/misc/csplit-1000.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # cause a 1-byte heap buffer overrun
 
-# Copyright (C) 2010-2022 Free Software Foundation, Inc.
+# Copyright (C) 2010-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/csplit-heap.sh b/tests/misc/csplit-heap.sh
index 326374f1d..2ba3c4500 100755
--- a/tests/misc/csplit-heap.sh
+++ b/tests/misc/csplit-heap.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # ensure that csplit uses a bounded amount of memory
 
-# Copyright (C) 2010-2022 Free Software Foundation, Inc.
+# Copyright (C) 2010-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/csplit-io-err.sh b/tests/misc/csplit-io-err.sh
index 9ad00bb32..04c0ce003 100755
--- a/tests/misc/csplit-io-err.sh
+++ b/tests/misc/csplit-io-err.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Ensure we handle i/o errors correctly in csplit
 
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/csplit-suppress-matched.pl b/tests/misc/csplit-suppress-matched.pl
index 58a88ec91..b2c1a7039 100755
--- a/tests/misc/csplit-suppress-matched.pl
+++ b/tests/misc/csplit-suppress-matched.pl
@@ -1,6 +1,6 @@
 #!/usr/bin/perl
 
-# Copyright (C) 2013-2022 Free Software Foundation, Inc.
+# Copyright (C) 2013-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/csplit.sh b/tests/misc/csplit.sh
index ab15e5028..a27f61eac 100755
--- a/tests/misc/csplit.sh
+++ b/tests/misc/csplit.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # various csplit tests
 
-# Copyright (C) 2001-2022 Free Software Foundation, Inc.
+# Copyright (C) 2001-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/cut-huge-range.sh b/tests/misc/cut-huge-range.sh
index a235d6e81..453108cea 100755
--- a/tests/misc/cut-huge-range.sh
+++ b/tests/misc/cut-huge-range.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Ensure that cut does not allocate mem for large ranges
 
-# Copyright (C) 2012-2022 Free Software Foundation, Inc.
+# Copyright (C) 2012-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/cut.pl b/tests/misc/cut.pl
index c93d73813..2e019078d 100755
--- a/tests/misc/cut.pl
+++ b/tests/misc/cut.pl
@@ -1,7 +1,7 @@
 #!/usr/bin/perl
 # Test "cut".
 
-# Copyright (C) 2006-2022 Free Software Foundation, Inc.
+# Copyright (C) 2006-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/date-debug.sh b/tests/misc/date-debug.sh
index 5c38dee41..8bbbf4ef8 100755
--- a/tests/misc/date-debug.sh
+++ b/tests/misc/date-debug.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test 'date --debug' option.
 
-# Copyright (C) 2016-2022 Free Software Foundation, Inc.
+# Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/date-next-dow.pl b/tests/misc/date-next-dow.pl
index 8761c71a8..ec414c788 100755
--- a/tests/misc/date-next-dow.pl
+++ b/tests/misc/date-next-dow.pl
@@ -1,7 +1,7 @@
 #!/usr/bin/perl
 # Test "date".
 
-# Copyright (C) 2005-2022 Free Software Foundation, Inc.
+# Copyright (C) 2005-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/date-sec.sh b/tests/misc/date-sec.sh
index fdd5105ab..f18590e6b 100755
--- a/tests/misc/date-sec.sh
+++ b/tests/misc/date-sec.sh
@@ -3,7 +3,7 @@
 # date --date="21:04 +0100" +%S' always prints '00'.
 # Before coreutils-5.2.1, it would print the seconds from the current time.
 
-# Copyright (C) 2004-2022 Free Software Foundation, Inc.
+# Copyright (C) 2004-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/date-tz.sh b/tests/misc/date-tz.sh
index ac17f7e7e..f6cf071ba 100755
--- a/tests/misc/date-tz.sh
+++ b/tests/misc/date-tz.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Verify TZ processing.
 
-# Copyright (C) 2017-2022 Free Software Foundation, Inc.
+# Copyright (C) 2017-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/date.pl b/tests/misc/date.pl
index f40a37702..d18f8b1eb 100755
--- a/tests/misc/date.pl
+++ b/tests/misc/date.pl
@@ -1,7 +1,7 @@
 #!/usr/bin/perl
 # Test "date".
 
-# Copyright (C) 2005-2022 Free Software Foundation, Inc.
+# Copyright (C) 2005-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/dircolors.pl b/tests/misc/dircolors.pl
index 6bb8b7463..f33e893da 100755
--- a/tests/misc/dircolors.pl
+++ b/tests/misc/dircolors.pl
@@ -1,7 +1,7 @@
 #!/usr/bin/perl
 # Simple dircolors tests.
 
-# Copyright (C) 1998-2022 Free Software Foundation, Inc.
+# Copyright (C) 1998-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/dirname.pl b/tests/misc/dirname.pl
index d1a78c162..e509c6bdc 100755
--- a/tests/misc/dirname.pl
+++ b/tests/misc/dirname.pl
@@ -1,7 +1,7 @@
 #!/usr/bin/perl
 # Test "dirname".
 
-# Copyright (C) 2006-2022 Free Software Foundation, Inc.
+# Copyright (C) 2006-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/echo.sh b/tests/misc/echo.sh
index 2294035bb..1cd923146 100755
--- a/tests/misc/echo.sh
+++ b/tests/misc/echo.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # basic tests for echo
 
-# Copyright (C) 2018-2022 Free Software Foundation, Inc.
+# Copyright (C) 2018-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/env-S-script.sh b/tests/misc/env-S-script.sh
index 0fd43d32f..ace112c0d 100755
--- a/tests/misc/env-S-script.sh
+++ b/tests/misc/env-S-script.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test env -S in a #! line of a script.
 
-# Copyright (C) 2018-2022 Free Software Foundation, Inc.
+# Copyright (C) 2018-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/env-S.pl b/tests/misc/env-S.pl
index b11836d29..ad5e7ae00 100755
--- a/tests/misc/env-S.pl
+++ b/tests/misc/env-S.pl
@@ -1,7 +1,7 @@
 #!/usr/bin/perl
 # Test 'env -S' feature
 
-# Copyright (C) 2018-2022 Free Software Foundation, Inc.
+# Copyright (C) 2018-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/env-null.sh b/tests/misc/env-null.sh
index 034083043..fac66754c 100755
--- a/tests/misc/env-null.sh
+++ b/tests/misc/env-null.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Verify behavior of env -0 and printenv -0.
 
-# Copyright (C) 2009-2022 Free Software Foundation, Inc.
+# Copyright (C) 2009-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/env-signal-handler.sh b/tests/misc/env-signal-handler.sh
index 182d422e1..7fc7fd635 100755
--- a/tests/misc/env-signal-handler.sh
+++ b/tests/misc/env-signal-handler.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test env --default-signal=PIPE feature.
 
-# Copyright (C) 2019-2022 Free Software Foundation, Inc.
+# Copyright (C) 2019-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/env.sh b/tests/misc/env.sh
index 5a63f347c..25241afc5 100755
--- a/tests/misc/env.sh
+++ b/tests/misc/env.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Verify behavior of env.
 
-# Copyright (C) 2009-2022 Free Software Foundation, Inc.
+# Copyright (C) 2009-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/expand.pl b/tests/misc/expand.pl
index 7a77e6f1c..06261acb3 100755
--- a/tests/misc/expand.pl
+++ b/tests/misc/expand.pl
@@ -1,7 +1,7 @@
 #!/usr/bin/perl
 # Exercise expand.
 
-# Copyright (C) 2004-2022 Free Software Foundation, Inc.
+# Copyright (C) 2004-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/expr-multibyte.pl b/tests/misc/expr-multibyte.pl
index 635b0de5d..d6703518f 100755
--- a/tests/misc/expr-multibyte.pl
+++ b/tests/misc/expr-multibyte.pl
@@ -1,7 +1,7 @@
 #!/usr/bin/perl
 # Exercise expr with multibyte input
 
-# Copyright (C) 2017-2022 Free Software Foundation, Inc.
+# Copyright (C) 2017-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/expr.pl b/tests/misc/expr.pl
index 5be040474..f4863b109 100755
--- a/tests/misc/expr.pl
+++ b/tests/misc/expr.pl
@@ -1,7 +1,7 @@
 #!/usr/bin/perl
 # Basic tests for "expr".
 
-# Copyright (C) 2001-2022 Free Software Foundation, Inc.
+# Copyright (C) 2001-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/factor-parallel.sh b/tests/misc/factor-parallel.sh
index 153f6cfe3..9a3d62ac1 100755
--- a/tests/misc/factor-parallel.sh
+++ b/tests/misc/factor-parallel.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test for complete lines on output
 
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/factor.pl b/tests/misc/factor.pl
index f399656c7..6e612e418 100755
--- a/tests/misc/factor.pl
+++ b/tests/misc/factor.pl
@@ -1,7 +1,7 @@
 #!/usr/bin/perl
 # Basic tests for "factor".
 
-# Copyright (C) 1998-2022 Free Software Foundation, Inc.
+# Copyright (C) 1998-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/false-status.sh b/tests/misc/false-status.sh
index 5f4ab7ec2..7c4f8e2c9 100755
--- a/tests/misc/false-status.sh
+++ b/tests/misc/false-status.sh
@@ -2,7 +2,7 @@
 # ensure that false exits nonzero even with --help or --version
 # and ensure that true exits nonzero when it can't write --help or --version
 
-# Copyright (C) 2003-2022 Free Software Foundation, Inc.
+# Copyright (C) 2003-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/fold.pl b/tests/misc/fold.pl
index 2834f92d2..a94072f5f 100755
--- a/tests/misc/fold.pl
+++ b/tests/misc/fold.pl
@@ -1,7 +1,7 @@
 #!/usr/bin/perl
 # Exercise fold.
 
-# Copyright (C) 2003-2022 Free Software Foundation, Inc.
+# Copyright (C) 2003-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/groups-dash.sh b/tests/misc/groups-dash.sh
index d4d2dcd64..a979bc8d6 100755
--- a/tests/misc/groups-dash.sh
+++ b/tests/misc/groups-dash.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # ensure groups handles -- sanely
 
-# Copyright (C) 2007-2022 Free Software Foundation, Inc.
+# Copyright (C) 2007-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/groups-process-all.sh b/tests/misc/groups-process-all.sh
index 77be78f09..2e455c78a 100755
--- a/tests/misc/groups-process-all.sh
+++ b/tests/misc/groups-process-all.sh
@@ -2,7 +2,7 @@
 # Ensure groups processes all arguments before exiting.
 # With coreutils-2.27 and prior, it would exit upon first failure.
 
-# Copyright (C) 2017-2022 Free Software Foundation, Inc.
+# Copyright (C) 2017-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/groups-version.sh b/tests/misc/groups-version.sh
index 14ba4bd00..c177e3225 100755
--- a/tests/misc/groups-version.sh
+++ b/tests/misc/groups-version.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # ensure groups --version output is similar to id --version
 
-# Copyright (C) 2007-2022 Free Software Foundation, Inc.
+# Copyright (C) 2007-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/head-c.sh b/tests/misc/head-c.sh
index 7655ff346..052caa73d 100755
--- a/tests/misc/head-c.sh
+++ b/tests/misc/head-c.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # exercise head -c
 
-# Copyright (C) 2001-2022 Free Software Foundation, Inc.
+# Copyright (C) 2001-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/head-elide-tail.pl b/tests/misc/head-elide-tail.pl
index 16f5f043b..221b45a80 100755
--- a/tests/misc/head-elide-tail.pl
+++ b/tests/misc/head-elide-tail.pl
@@ -1,7 +1,7 @@
 #!/usr/bin/perl
 # Exercise head's --bytes=-N option.
 
-# Copyright (C) 2003-2022 Free Software Foundation, Inc.
+# Copyright (C) 2003-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/head-pos.sh b/tests/misc/head-pos.sh
index 3715e9098..c24edd161 100755
--- a/tests/misc/head-pos.sh
+++ b/tests/misc/head-pos.sh
@@ -2,7 +2,7 @@
 # When reading a specified number of lines, ensure that the output
 # file pointer is positioned just after those lines.
 
-# Copyright (C) 2002-2022 Free Software Foundation, Inc.
+# Copyright (C) 2002-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/head-write-error.sh b/tests/misc/head-write-error.sh
index 6362261a9..25cebe100 100755
--- a/tests/misc/head-write-error.sh
+++ b/tests/misc/head-write-error.sh
@@ -2,7 +2,7 @@
 # Ensure we diagnose and not continue writing to
 # the output if we get a write error.
 
-# Copyright (C) 2014-2022 Free Software Foundation, Inc.
+# Copyright (C) 2014-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/head.pl b/tests/misc/head.pl
index 5c767cda6..56a1b3582 100755
--- a/tests/misc/head.pl
+++ b/tests/misc/head.pl
@@ -1,7 +1,7 @@
 #!/usr/bin/perl
 # test head
 
-# Copyright (C) 2008-2022 Free Software Foundation, Inc.
+# Copyright (C) 2008-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/help-version-getopt.sh b/tests/misc/help-version-getopt.sh
index 2e01b412b..6e61b0f63 100755
--- a/tests/misc/help-version-getopt.sh
+++ b/tests/misc/help-version-getopt.sh
@@ -2,7 +2,7 @@
 # Ensure --version and --help options are processed before
 # any other options by some programs.
 
-# Copyright (C) 2019-2022 Free Software Foundation, Inc.
+# Copyright (C) 2019-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/help-version.sh b/tests/misc/help-version.sh
index 9052c3c5c..f0ef47518 100755
--- a/tests/misc/help-version.sh
+++ b/tests/misc/help-version.sh
@@ -2,7 +2,7 @@
 # Make sure all of these programs work properly
 # when invoked with --help or --version.
 
-# Copyright (C) 2000-2022 Free Software Foundation, Inc.
+# Copyright (C) 2000-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/invalid-opt.pl b/tests/misc/invalid-opt.pl
index 22a0b4121..872cbf8a7 100755
--- a/tests/misc/invalid-opt.pl
+++ b/tests/misc/invalid-opt.pl
@@ -1,7 +1,7 @@
 #!/usr/bin/perl
 # exercise the 'invalid option' handling code in each program
 
-# Copyright (C) 2008-2022 Free Software Foundation, Inc.
+# Copyright (C) 2008-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/join.pl b/tests/misc/join.pl
index 06ad77730..2ca8567ba 100755
--- a/tests/misc/join.pl
+++ b/tests/misc/join.pl
@@ -1,7 +1,7 @@
 #!/usr/bin/perl
 # Test join.
 
-# Copyright (C) 2008-2022 Free Software Foundation, Inc.
+# Copyright (C) 2008-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/kill.sh b/tests/misc/kill.sh
index 1efd14c51..34d6578a2 100755
--- a/tests/misc/kill.sh
+++ b/tests/misc/kill.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Validate kill operation
 
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/ls-misc.pl b/tests/misc/ls-misc.pl
index 2f4a7c174..ae75c18e8 100755
--- a/tests/misc/ls-misc.pl
+++ b/tests/misc/ls-misc.pl
@@ -1,6 +1,6 @@
 #!/usr/bin/perl
 
-# Copyright (C) 1998-2022 Free Software Foundation, Inc.
+# Copyright (C) 1998-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/ls-time.sh b/tests/misc/ls-time.sh
index 33e32866a..5585d62d6 100755
--- a/tests/misc/ls-time.sh
+++ b/tests/misc/ls-time.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test some of ls's sorting options.
 
-# Copyright (C) 1998-2022 Free Software Foundation, Inc.
+# Copyright (C) 1998-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/md5sum-bsd.sh b/tests/misc/md5sum-bsd.sh
index 57188e863..5fe9b2fc9 100755
--- a/tests/misc/md5sum-bsd.sh
+++ b/tests/misc/md5sum-bsd.sh
@@ -2,7 +2,7 @@
 # 'md5sum' tests for generation and checking of
 # BSD traditional and alternate formats (md5 [-r])
 
-# Copyright (C) 2011-2022 Free Software Foundation, Inc.
+# Copyright (C) 2011-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/md5sum-newline.pl b/tests/misc/md5sum-newline.pl
index a89b3ca7c..feaebb49e 100755
--- a/tests/misc/md5sum-newline.pl
+++ b/tests/misc/md5sum-newline.pl
@@ -1,7 +1,7 @@
 #!/usr/bin/perl
 # Newline tests for "md5sum".
 
-# Copyright (C) 1999-2022 Free Software Foundation, Inc.
+# Copyright (C) 1999-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/md5sum-parallel.sh b/tests/misc/md5sum-parallel.sh
index f35a67a55..99da9ad6b 100755
--- a/tests/misc/md5sum-parallel.sh
+++ b/tests/misc/md5sum-parallel.sh
@@ -2,7 +2,7 @@
 # Ensure that md5sum prints each checksum atomically
 # so that concurrent md5sums don't intersperse their output
 
-# Copyright (C) 2009-2022 Free Software Foundation, Inc.
+# Copyright (C) 2009-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/md5sum.pl b/tests/misc/md5sum.pl
index f47731911..186aca977 100755
--- a/tests/misc/md5sum.pl
+++ b/tests/misc/md5sum.pl
@@ -1,7 +1,7 @@
 #!/usr/bin/perl
 # Basic tests for "md5sum".
 
-# Copyright (C) 1998-2022 Free Software Foundation, Inc.
+# Copyright (C) 1998-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/mknod.sh b/tests/misc/mknod.sh
index 250bb9084..de8d4f67f 100755
--- a/tests/misc/mknod.sh
+++ b/tests/misc/mknod.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Ensure that mknod, mkfifo, mkdir -m MODE work with a restrictive umask
 
-# Copyright (C) 2004-2022 Free Software Foundation, Inc.
+# Copyright (C) 2004-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/mktemp.pl b/tests/misc/mktemp.pl
index a0f0dea4e..52f262b58 100755
--- a/tests/misc/mktemp.pl
+++ b/tests/misc/mktemp.pl
@@ -1,7 +1,7 @@
 #!/usr/bin/perl
 # Test "mktemp".
 
-# Copyright (C) 2007-2022 Free Software Foundation, Inc.
+# Copyright (C) 2007-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/nice-fail.sh b/tests/misc/nice-fail.sh
index 5fdd9c315..5ba7f5a23 100755
--- a/tests/misc/nice-fail.sh
+++ b/tests/misc/nice-fail.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Verify that internal failure in nice gives exact status.
 
-# Copyright (C) 2009-2022 Free Software Foundation, Inc.
+# Copyright (C) 2009-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/nice.sh b/tests/misc/nice.sh
index d2b5cea20..2df94f351 100755
--- a/tests/misc/nice.sh
+++ b/tests/misc/nice.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test "nice".
 
-# Copyright (C) 2002-2022 Free Software Foundation, Inc.
+# Copyright (C) 2002-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/nl.sh b/tests/misc/nl.sh
index 8a47c9e5c..a1e9480d7 100755
--- a/tests/misc/nl.sh
+++ b/tests/misc/nl.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # exercise nl functionality
 
-# Copyright (C) 2002-2022 Free Software Foundation, Inc.
+# Copyright (C) 2002-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/nohup.sh b/tests/misc/nohup.sh
index 3825d128a..3a598afb8 100755
--- a/tests/misc/nohup.sh
+++ b/tests/misc/nohup.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # test nohup
 
-# Copyright (C) 2003-2022 Free Software Foundation, Inc.
+# Copyright (C) 2003-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/nproc-avail.sh b/tests/misc/nproc-avail.sh
index 14b7d6ea3..271ba6ab6 100755
--- a/tests/misc/nproc-avail.sh
+++ b/tests/misc/nproc-avail.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Ensure that "nproc" is less than or equal to "nproc --all".
 
-# Copyright (C) 2009-2022 Free Software Foundation, Inc.
+# Copyright (C) 2009-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/nproc-override.sh b/tests/misc/nproc-override.sh
index a0767db35..e643bc37f 100755
--- a/tests/misc/nproc-override.sh
+++ b/tests/misc/nproc-override.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test the various OpenMP override options
 
-# Copyright (C) 2017-2022 Free Software Foundation, Inc.
+# Copyright (C) 2017-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/nproc-positive.sh b/tests/misc/nproc-positive.sh
index 25db68574..d4936a1ff 100755
--- a/tests/misc/nproc-positive.sh
+++ b/tests/misc/nproc-positive.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Ensure that nproc prints a number > 0
 
-# Copyright (C) 2009-2022 Free Software Foundation, Inc.
+# Copyright (C) 2009-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/numfmt.pl b/tests/misc/numfmt.pl
index 7ec04b1ef..06df09a44 100755
--- a/tests/misc/numfmt.pl
+++ b/tests/misc/numfmt.pl
@@ -1,7 +1,7 @@
 #!/usr/bin/perl
 # Basic tests for "numfmt".
 
-# Copyright (C) 2012-2022 Free Software Foundation, Inc.
+# Copyright (C) 2012-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/od-N.sh b/tests/misc/od-N.sh
index 1ea36c3d4..9e8c061bf 100755
--- a/tests/misc/od-N.sh
+++ b/tests/misc/od-N.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Verify that 'od -N N' reads no more than N bytes of input.
 
-# Copyright (C) 2001-2022 Free Software Foundation, Inc.
+# Copyright (C) 2001-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/od-endian.sh b/tests/misc/od-endian.sh
index 10f1dfb82..6154894c5 100755
--- a/tests/misc/od-endian.sh
+++ b/tests/misc/od-endian.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # verify that od --endian works properly
 
-# Copyright (C) 2014-2022 Free Software Foundation, Inc.
+# Copyright (C) 2014-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/od-float.sh b/tests/misc/od-float.sh
index 91a903062..a651cec48 100755
--- a/tests/misc/od-float.sh
+++ b/tests/misc/od-float.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test od on floating-point values.
 
-# Copyright (C) 2010-2022 Free Software Foundation, Inc.
+# Copyright (C) 2010-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/od-j.sh b/tests/misc/od-j.sh
index a632f3b31..1c402cbca 100755
--- a/tests/misc/od-j.sh
+++ b/tests/misc/od-j.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Verify that 'od -j N' skips N bytes of input.
 
-# Copyright 2014-2022 Free Software Foundation, Inc.
+# Copyright 2014-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/od-multiple-t.sh b/tests/misc/od-multiple-t.sh
index 2bfc6b323..729cdb247 100755
--- a/tests/misc/od-multiple-t.sh
+++ b/tests/misc/od-multiple-t.sh
@@ -2,7 +2,7 @@
 # verify that multiple -t specifiers to od align well
 # This would fail before coreutils-6.13.
 
-# Copyright (C) 2008-2022 Free Software Foundation, Inc.
+# Copyright (C) 2008-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/od-x8.sh b/tests/misc/od-x8.sh
index 4fcbee77f..3b11bf7c1 100755
--- a/tests/misc/od-x8.sh
+++ b/tests/misc/od-x8.sh
@@ -2,7 +2,7 @@
 # verify that od -t x8 works properly
 # This would fail before coreutils-4.5.2.
 
-# Copyright (C) 2002-2022 Free Software Foundation, Inc.
+# Copyright (C) 2002-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/od.pl b/tests/misc/od.pl
index 0ef1dc707..7936ddb9f 100755
--- a/tests/misc/od.pl
+++ b/tests/misc/od.pl
@@ -1,7 +1,7 @@
 #!/usr/bin/perl
 # Exercise od
 
-# Copyright (C) 2006-2022 Free Software Foundation, Inc.
+# Copyright (C) 2006-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/paste.pl b/tests/misc/paste.pl
index 9e65cbc6a..e14ef1c0b 100755
--- a/tests/misc/paste.pl
+++ b/tests/misc/paste.pl
@@ -1,7 +1,7 @@
 #!/usr/bin/perl
 # Test paste.
 
-# Copyright (C) 2003-2022 Free Software Foundation, Inc.
+# Copyright (C) 2003-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/pathchk1.sh b/tests/misc/pathchk1.sh
index 93403b6eb..b0892ac4b 100755
--- a/tests/misc/pathchk1.sh
+++ b/tests/misc/pathchk1.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # pathchk tests
 
-# Copyright (C) 2002-2022 Free Software Foundation, Inc.
+# Copyright (C) 2002-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/printenv.sh b/tests/misc/printenv.sh
index 6cee5e7de..708f92b0a 100755
--- a/tests/misc/printenv.sh
+++ b/tests/misc/printenv.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Verify behavior of printenv.
 
-# Copyright (C) 2009-2022 Free Software Foundation, Inc.
+# Copyright (C) 2009-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/printf-cov.pl b/tests/misc/printf-cov.pl
index 59c85cb66..988c2a711 100755
--- a/tests/misc/printf-cov.pl
+++ b/tests/misc/printf-cov.pl
@@ -1,7 +1,7 @@
 #!/usr/bin/perl
 # improve printf.c test coverage
 
-# Copyright (C) 2008-2022 Free Software Foundation, Inc.
+# Copyright (C) 2008-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/printf-hex.sh b/tests/misc/printf-hex.sh
index 6e76ad1bc..3aa9472e1 100755
--- a/tests/misc/printf-hex.sh
+++ b/tests/misc/printf-hex.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # make sure that only two hex. digits are consumed in a \xHHH sequence
 
-# Copyright (C) 2002-2022 Free Software Foundation, Inc.
+# Copyright (C) 2002-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/printf-mb.sh b/tests/misc/printf-mb.sh
index f2f32c8a7..418ad3564 100755
--- a/tests/misc/printf-mb.sh
+++ b/tests/misc/printf-mb.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # tests for printing multi-byte values of characters
 
-# Copyright (C) 2022 Free Software Foundation, Inc.
+# Copyright (C) 2022-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/printf-quote.sh b/tests/misc/printf-quote.sh
index f39600174..d1671bd9d 100755
--- a/tests/misc/printf-quote.sh
+++ b/tests/misc/printf-quote.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # tests for printf %q
 
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/printf-surprise.sh b/tests/misc/printf-surprise.sh
index 480f6b9d4..fc3c064e5 100755
--- a/tests/misc/printf-surprise.sh
+++ b/tests/misc/printf-surprise.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Detect printf(3) failure even when it doesn't set stream error indicator
 
-# Copyright (C) 2007-2022 Free Software Foundation, Inc.
+# Copyright (C) 2007-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/printf.sh b/tests/misc/printf.sh
index 797fed6ce..834012cc5 100755
--- a/tests/misc/printf.sh
+++ b/tests/misc/printf.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # basic tests for printf
 
-# Copyright (C) 2002-2022 Free Software Foundation, Inc.
+# Copyright (C) 2002-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/ptx-overrun.sh b/tests/misc/ptx-overrun.sh
index a616bb19e..9b13ccc7d 100755
--- a/tests/misc/ptx-overrun.sh
+++ b/tests/misc/ptx-overrun.sh
@@ -1,6 +1,6 @@
 #!/bin/sh
 
-# Copyright (C) 2008-2022 Free Software Foundation, Inc.
+# Copyright (C) 2008-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/ptx.pl b/tests/misc/ptx.pl
index 2feec87be..46f88d851 100755
--- a/tests/misc/ptx.pl
+++ b/tests/misc/ptx.pl
@@ -1,6 +1,6 @@
 #!/usr/bin/perl
 
-# Copyright (C) 2008-2022 Free Software Foundation, Inc.
+# Copyright (C) 2008-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/pwd-long.sh b/tests/misc/pwd-long.sh
index 34a3b54a5..480cc197d 100755
--- a/tests/misc/pwd-long.sh
+++ b/tests/misc/pwd-long.sh
@@ -2,7 +2,7 @@
 # -*- perl -*-
 # Ensure that pwd works even when run from a very deep directory.
 
-# Copyright (C) 2006-2022 Free Software Foundation, Inc.
+# Copyright (C) 2006-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/pwd-option.sh b/tests/misc/pwd-option.sh
index fdcf675c4..50fc95775 100755
--- a/tests/misc/pwd-option.sh
+++ b/tests/misc/pwd-option.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Ensure that pwd options work.
 
-# Copyright (C) 2009-2022 Free Software Foundation, Inc.
+# Copyright (C) 2009-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/readlink-fp-loop.sh b/tests/misc/readlink-fp-loop.sh
index a8e84305c..f1e277a66 100755
--- a/tests/misc/readlink-fp-loop.sh
+++ b/tests/misc/readlink-fp-loop.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # readlink from 6.9 would fail with a false-positive symlink loop error
 
-# Copyright (C) 2007-2022 Free Software Foundation, Inc.
+# Copyright (C) 2007-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/readlink-root.sh b/tests/misc/readlink-root.sh
index 1e791253c..0015d3d93 100755
--- a/tests/misc/readlink-root.sh
+++ b/tests/misc/readlink-root.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # tests for canonicalize-existing mode (readlink -e) on /.
 
-# Copyright (C) 2012-2022 Free Software Foundation, Inc.
+# Copyright (C) 2012-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/realpath.sh b/tests/misc/realpath.sh
index a27a46b2f..251ea1955 100755
--- a/tests/misc/realpath.sh
+++ b/tests/misc/realpath.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Validate realpath operation
 
-# Copyright (C) 2011-2022 Free Software Foundation, Inc.
+# Copyright (C) 2011-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/runcon-compute.sh b/tests/misc/runcon-compute.sh
index 4db24ac4b..bc3cd8cab 100755
--- a/tests/misc/runcon-compute.sh
+++ b/tests/misc/runcon-compute.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Ensure that runcon -c uses absolute file names
 
-# Copyright (C) 2022 Free Software Foundation, Inc.
+# Copyright (C) 2022-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/runcon-no-reorder.sh b/tests/misc/runcon-no-reorder.sh
index b72274c05..f07a4e59e 100755
--- a/tests/misc/runcon-no-reorder.sh
+++ b/tests/misc/runcon-no-reorder.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Ensure that runcon does not reorder its arguments.
 
-# Copyright (C) 2007-2022 Free Software Foundation, Inc.
+# Copyright (C) 2007-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/selinux.sh b/tests/misc/selinux.sh
index fe854678b..35ad5f817 100755
--- a/tests/misc/selinux.sh
+++ b/tests/misc/selinux.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test SELinux-related options.
 
-# Copyright (C) 2007-2022 Free Software Foundation, Inc.
+# Copyright (C) 2007-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/seq-epipe.sh b/tests/misc/seq-epipe.sh
index 9e382b210..32e4a3a83 100755
--- a/tests/misc/seq-epipe.sh
+++ b/tests/misc/seq-epipe.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test for proper detection of EPIPE with ignored SIGPIPE
 
-# Copyright (C) 2016-2022 Free Software Foundation, Inc.
+# Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/seq-extra-number.sh b/tests/misc/seq-extra-number.sh
index ded774dec..0fe70a702 100755
--- a/tests/misc/seq-extra-number.sh
+++ b/tests/misc/seq-extra-number.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test the "print_extra_number" logic seq.c:print_numbers()
 
-# Copyright (C) 2019-2022 Free Software Foundation, Inc.
+# Copyright (C) 2019-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/seq-io-errors.sh b/tests/misc/seq-io-errors.sh
index 41886b7ae..08bea76e6 100755
--- a/tests/misc/seq-io-errors.sh
+++ b/tests/misc/seq-io-errors.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test for proper detection of I/O errors in seq
 
-# Copyright (C) 2016-2022 Free Software Foundation, Inc.
+# Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/seq-locale.sh b/tests/misc/seq-locale.sh
index f0efd2c5f..6c4227167 100755
--- a/tests/misc/seq-locale.sh
+++ b/tests/misc/seq-locale.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test for output with appropriate precision
 
-# Copyright (C) 2019-2022 Free Software Foundation, Inc.
+# Copyright (C) 2019-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/seq-long-double.sh b/tests/misc/seq-long-double.sh
index cfc39f829..76b0a9314 100755
--- a/tests/misc/seq-long-double.sh
+++ b/tests/misc/seq-long-double.sh
@@ -3,7 +3,7 @@
 # Ensure that seq prints exactly two numbers for a 2-number integral
 # range at the limit of floating point precision.
 
-# Copyright (C) 2008-2022 Free Software Foundation, Inc.
+# Copyright (C) 2008-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/seq-precision.sh b/tests/misc/seq-precision.sh
index d489d7645..25678aa30 100755
--- a/tests/misc/seq-precision.sh
+++ b/tests/misc/seq-precision.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test for output with appropriate precision
 
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/seq.pl b/tests/misc/seq.pl
index 722005557..2990fa57e 100755
--- a/tests/misc/seq.pl
+++ b/tests/misc/seq.pl
@@ -1,7 +1,7 @@
 #!/usr/bin/perl
 # Test "seq".
 
-# Copyright (C) 1999-2022 Free Software Foundation, Inc.
+# Copyright (C) 1999-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/sha1sum-vec.pl b/tests/misc/sha1sum-vec.pl
index 9d2e2b0a5..7fed5fe37 100755
--- a/tests/misc/sha1sum-vec.pl
+++ b/tests/misc/sha1sum-vec.pl
@@ -1,7 +1,7 @@
 #!/usr/bin/perl
 # Sample vectors for "sha1sum".
 
-# Copyright (C) 2000-2022 Free Software Foundation, Inc.
+# Copyright (C) 2000-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/sha1sum.pl b/tests/misc/sha1sum.pl
index 9fe9483e4..40675cf7d 100755
--- a/tests/misc/sha1sum.pl
+++ b/tests/misc/sha1sum.pl
@@ -1,7 +1,7 @@
 #!/usr/bin/perl
 # Test "sha1sum".
 
-# Copyright (C) 2000-2022 Free Software Foundation, Inc.
+# Copyright (C) 2000-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/sha224sum.pl b/tests/misc/sha224sum.pl
index aba053546..62710d7d2 100755
--- a/tests/misc/sha224sum.pl
+++ b/tests/misc/sha224sum.pl
@@ -1,7 +1,7 @@
 #!/usr/bin/perl
 # Test "sha224sum".
 
-# Copyright (C) 2005-2022 Free Software Foundation, Inc.
+# Copyright (C) 2005-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/sha256sum.pl b/tests/misc/sha256sum.pl
index ec69915b1..7fa0b8a20 100755
--- a/tests/misc/sha256sum.pl
+++ b/tests/misc/sha256sum.pl
@@ -1,7 +1,7 @@
 #!/usr/bin/perl
 # Test "sha256sum".
 
-# Copyright (C) 2005-2022 Free Software Foundation, Inc.
+# Copyright (C) 2005-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/sha384sum.pl b/tests/misc/sha384sum.pl
index 3614a0290..dd0b1c95c 100755
--- a/tests/misc/sha384sum.pl
+++ b/tests/misc/sha384sum.pl
@@ -1,7 +1,7 @@
 #!/usr/bin/perl
 # Test "sha384sum".
 
-# Copyright (C) 2005-2022 Free Software Foundation, Inc.
+# Copyright (C) 2005-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/sha512sum.pl b/tests/misc/sha512sum.pl
index 84d0d1380..8cabe368e 100755
--- a/tests/misc/sha512sum.pl
+++ b/tests/misc/sha512sum.pl
@@ -1,7 +1,7 @@
 #!/usr/bin/perl
 # Test "sha512sum".
 
-# Copyright (C) 2005-2022 Free Software Foundation, Inc.
+# Copyright (C) 2005-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/shred-exact.sh b/tests/misc/shred-exact.sh
index 2c8f9839b..17a8b0563 100755
--- a/tests/misc/shred-exact.sh
+++ b/tests/misc/shred-exact.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test functionality of --exact
 
-# Copyright (C) 2000-2022 Free Software Foundation, Inc.
+# Copyright (C) 2000-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/shred-passes.sh b/tests/misc/shred-passes.sh
index 61ca60bef..020cf688c 100755
--- a/tests/misc/shred-passes.sh
+++ b/tests/misc/shred-passes.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Verify the operations done by shred
 
-# Copyright (C) 2009-2022 Free Software Foundation, Inc.
+# Copyright (C) 2009-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/shred-remove.sh b/tests/misc/shred-remove.sh
index a4f51171e..25d58dbe8 100755
--- a/tests/misc/shred-remove.sh
+++ b/tests/misc/shred-remove.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Exercise shred --remove
 
-# Copyright (C) 1999-2022 Free Software Foundation, Inc.
+# Copyright (C) 1999-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/shred-size.sh b/tests/misc/shred-size.sh
index 07255cfe5..869058233 100755
--- a/tests/misc/shred-size.sh
+++ b/tests/misc/shred-size.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Exercise shred --size
 
-# Copyright (C) 2014-2022 Free Software Foundation, Inc.
+# Copyright (C) 2014-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/shuf-reservoir.sh b/tests/misc/shuf-reservoir.sh
index fb0aad3e5..2edfe5010 100755
--- a/tests/misc/shuf-reservoir.sh
+++ b/tests/misc/shuf-reservoir.sh
@@ -4,7 +4,7 @@
 #  These tests do not check valid randomness,
 #  they just check memory allocation related code.
 
-# Copyright (C) 2013-2022 Free Software Foundation, Inc.
+# Copyright (C) 2013-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/shuf.sh b/tests/misc/shuf.sh
index e75d17d96..57f9e38df 100755
--- a/tests/misc/shuf.sh
+++ b/tests/misc/shuf.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Ensure that shuf randomizes its input.
 
-# Copyright (C) 2006-2022 Free Software Foundation, Inc.
+# Copyright (C) 2006-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/sleep.sh b/tests/misc/sleep.sh
index bcf6c1857..908285387 100755
--- a/tests/misc/sleep.sh
+++ b/tests/misc/sleep.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Validate sleep parameters
 
-# Copyright (C) 2016-2022 Free Software Foundation, Inc.
+# Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/sm3sum.pl b/tests/misc/sm3sum.pl
index 7dfd4da70..3872fface 100755
--- a/tests/misc/sm3sum.pl
+++ b/tests/misc/sm3sum.pl
@@ -1,7 +1,7 @@
 #!/usr/bin/perl
 # Test "cksum -a sm3".
 
-# Copyright (C) 2021-2022 Free Software Foundation, Inc.
+# Copyright (C) 2021-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/sort-NaN-infloop.sh b/tests/misc/sort-NaN-infloop.sh
index cc1c583cd..9048865b4 100755
--- a/tests/misc/sort-NaN-infloop.sh
+++ b/tests/misc/sort-NaN-infloop.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # exercise the NaN-infloop bug in coreutils-8.13
 
-# Copyright (C) 2011-2022 Free Software Foundation, Inc.
+# Copyright (C) 2011-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/sort-benchmark-random.sh b/tests/misc/sort-benchmark-random.sh
index 13e911d43..cf26726a5 100755
--- a/tests/misc/sort-benchmark-random.sh
+++ b/tests/misc/sort-benchmark-random.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Benchmark sort on randomly generated data.
 
-# Copyright (C) 2010-2022 Free Software Foundation, Inc.
+# Copyright (C) 2010-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/sort-compress-hang.sh b/tests/misc/sort-compress-hang.sh
index 4c2ee25a2..93c6febf8 100755
--- a/tests/misc/sort-compress-hang.sh
+++ b/tests/misc/sort-compress-hang.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test for sort --compress hang
 
-# Copyright (C) 2010-2022 Free Software Foundation, Inc.
+# Copyright (C) 2010-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/sort-compress-proc.sh b/tests/misc/sort-compress-proc.sh
index 12f8209eb..07035be90 100755
--- a/tests/misc/sort-compress-proc.sh
+++ b/tests/misc/sort-compress-proc.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test use of compression subprocesses by sort
 
-# Copyright (C) 2010-2022 Free Software Foundation, Inc.
+# Copyright (C) 2010-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/sort-compress.sh b/tests/misc/sort-compress.sh
index 649d9a48b..fea4f0703 100755
--- a/tests/misc/sort-compress.sh
+++ b/tests/misc/sort-compress.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test use of compression by sort
 
-# Copyright (C) 2007-2022 Free Software Foundation, Inc.
+# Copyright (C) 2007-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/sort-continue.sh b/tests/misc/sort-continue.sh
index 058f86d72..c27336395 100755
--- a/tests/misc/sort-continue.sh
+++ b/tests/misc/sort-continue.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Tests for file descriptor exhaustion.
 
-# Copyright (C) 2009-2022 Free Software Foundation, Inc.
+# Copyright (C) 2009-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/sort-debug-keys.sh b/tests/misc/sort-debug-keys.sh
index 9a0f5cc7f..c97c64a10 100755
--- a/tests/misc/sort-debug-keys.sh
+++ b/tests/misc/sort-debug-keys.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test annotation of sort keys
 
-# Copyright (C) 2010-2022 Free Software Foundation, Inc.
+# Copyright (C) 2010-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/sort-debug-warn.sh b/tests/misc/sort-debug-warn.sh
index 4898c0495..ff0da95a7 100755
--- a/tests/misc/sort-debug-warn.sh
+++ b/tests/misc/sort-debug-warn.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test warnings for sort options
 
-# Copyright (C) 2010-2022 Free Software Foundation, Inc.
+# Copyright (C) 2010-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/sort-discrim.sh b/tests/misc/sort-discrim.sh
index 1d955e8e5..9912ea97e 100755
--- a/tests/misc/sort-discrim.sh
+++ b/tests/misc/sort-discrim.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test discriminator-based sorting.
 
-# Copyright (C) 2012-2022 Free Software Foundation, Inc.
+# Copyright (C) 2012-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/sort-exit-early.sh b/tests/misc/sort-exit-early.sh
index ed894787b..bd012a994 100755
--- a/tests/misc/sort-exit-early.sh
+++ b/tests/misc/sort-exit-early.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test 'sort' exits early on inaccessible inputs or output
 
-# Copyright (C) 2012-2022 Free Software Foundation, Inc.
+# Copyright (C) 2012-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/sort-files0-from.pl b/tests/misc/sort-files0-from.pl
index e26693c7e..56b28c01f 100755
--- a/tests/misc/sort-files0-from.pl
+++ b/tests/misc/sort-files0-from.pl
@@ -2,7 +2,7 @@
 # Exercise sort's --files0-from option.
 # FIXME: keep this file in sync with tests/du/files0-from.
 
-# Copyright (C) 2006-2022 Free Software Foundation, Inc.
+# Copyright (C) 2006-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/sort-float.sh b/tests/misc/sort-float.sh
index d44c01945..557096850 100755
--- a/tests/misc/sort-float.sh
+++ b/tests/misc/sort-float.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Ensure sort -g sorts floating point limits correctly
 
-# Copyright (C) 2010-2022 Free Software Foundation, Inc.
+# Copyright (C) 2010-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/sort-h-thousands-sep.sh b/tests/misc/sort-h-thousands-sep.sh
index 6139145de..5d1ff4f33 100755
--- a/tests/misc/sort-h-thousands-sep.sh
+++ b/tests/misc/sort-h-thousands-sep.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # exercise 'sort -h' in locales where thousands separator is blank
 
-# Copyright (C) 2016-2022 Free Software Foundation, Inc.
+# Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/sort-merge-fdlimit.sh b/tests/misc/sort-merge-fdlimit.sh
index 869a61692..db2d8ebf0 100755
--- a/tests/misc/sort-merge-fdlimit.sh
+++ b/tests/misc/sort-merge-fdlimit.sh
@@ -2,7 +2,7 @@
 # Test whether sort avoids opening more file descriptors than it is
 # allowed when merging files.
 
-# Copyright (C) 2009-2022 Free Software Foundation, Inc.
+# Copyright (C) 2009-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/sort-merge.pl b/tests/misc/sort-merge.pl
index 7eb45745e..bd439ef4a 100755
--- a/tests/misc/sort-merge.pl
+++ b/tests/misc/sort-merge.pl
@@ -1,7 +1,7 @@
 #!/usr/bin/perl
 # Test "sort -m".
 
-# Copyright (C) 2002-2022 Free Software Foundation, Inc.
+# Copyright (C) 2002-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/sort-month.sh b/tests/misc/sort-month.sh
index e91cb6470..4fa74646a 100755
--- a/tests/misc/sort-month.sh
+++ b/tests/misc/sort-month.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test sorting of abbreviated months from the locale
 
-# Copyright (C) 2010-2022 Free Software Foundation, Inc.
+# Copyright (C) 2010-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/sort-rand.sh b/tests/misc/sort-rand.sh
index 6772c6c9b..a80a76786 100755
--- a/tests/misc/sort-rand.sh
+++ b/tests/misc/sort-rand.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Ensure that sort --sort-random doesn't sort.
 
-# Copyright (C) 2005-2022 Free Software Foundation, Inc.
+# Copyright (C) 2005-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/sort-spinlock-abuse.sh b/tests/misc/sort-spinlock-abuse.sh
index 5be46b6e2..e59021334 100755
--- a/tests/misc/sort-spinlock-abuse.sh
+++ b/tests/misc/sort-spinlock-abuse.sh
@@ -2,7 +2,7 @@
 # trigger a bug that would make parallel sort use 100% of one or more
 # CPU while blocked on output.
 
-# Copyright (C) 2010-2022 Free Software Foundation, Inc.
+# Copyright (C) 2010-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/sort-stale-thread-mem.sh b/tests/misc/sort-stale-thread-mem.sh
index 3c28589ec..482864e21 100755
--- a/tests/misc/sort-stale-thread-mem.sh
+++ b/tests/misc/sort-stale-thread-mem.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Trigger a bug that would cause 'sort' to reference stale thread stack memory.
 
-# Copyright (C) 2010-2022 Free Software Foundation, Inc.
+# Copyright (C) 2010-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/sort-u-FMR.sh b/tests/misc/sort-u-FMR.sh
index 3b4f93985..71a218672 100755
--- a/tests/misc/sort-u-FMR.sh
+++ b/tests/misc/sort-u-FMR.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Before 8.19, this would trigger a free-memory read.
 
-# Copyright (C) 2012-2022 Free Software Foundation, Inc.
+# Copyright (C) 2012-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/sort-unique-segv.sh b/tests/misc/sort-unique-segv.sh
index e4a86f9d4..8e332bb11 100755
--- a/tests/misc/sort-unique-segv.sh
+++ b/tests/misc/sort-unique-segv.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # parallel sort with --unique (-u) would segfault
 
-# Copyright (C) 2010-2022 Free Software Foundation, Inc.
+# Copyright (C) 2010-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/sort-unique.sh b/tests/misc/sort-unique.sh
index f54cad051..df5b174aa 100755
--- a/tests/misc/sort-unique.sh
+++ b/tests/misc/sort-unique.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test 'sort -u'.
 
-# Copyright (C) 2010-2022 Free Software Foundation, Inc.
+# Copyright (C) 2010-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/sort-version.sh b/tests/misc/sort-version.sh
index 10ea6a56c..9a02729ed 100755
--- a/tests/misc/sort-version.sh
+++ b/tests/misc/sort-version.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # exercise sort's --sort=version option
 
-# Copyright (C) 2008-2022 Free Software Foundation, Inc.
+# Copyright (C) 2008-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/sort.pl b/tests/misc/sort.pl
index 0b0adcac0..0cd2340a2 100755
--- a/tests/misc/sort.pl
+++ b/tests/misc/sort.pl
@@ -1,6 +1,6 @@
 #!/usr/bin/perl
 
-# Copyright (C) 2008-2022 Free Software Foundation, Inc.
+# Copyright (C) 2008-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/stat-birthtime.sh b/tests/misc/stat-birthtime.sh
index 647ea6776..8d2e661a2 100755
--- a/tests/misc/stat-birthtime.sh
+++ b/tests/misc/stat-birthtime.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # ensure that stat attempts birthtime access
 
-# Copyright (C) 2010-2022 Free Software Foundation, Inc.
+# Copyright (C) 2010-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/stat-fmt.sh b/tests/misc/stat-fmt.sh
index 7f557f214..df5097371 100755
--- a/tests/misc/stat-fmt.sh
+++ b/tests/misc/stat-fmt.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # stat --format tests
 
-# Copyright (C) 2003-2022 Free Software Foundation, Inc.
+# Copyright (C) 2003-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/stat-hyphen.sh b/tests/misc/stat-hyphen.sh
index 9520402cb..ea65c20e0 100755
--- a/tests/misc/stat-hyphen.sh
+++ b/tests/misc/stat-hyphen.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # demonstrate that stat - works and stat -f - does not.
 
-# Copyright (C) 2009-2022 Free Software Foundation, Inc.
+# Copyright (C) 2009-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/stat-mount.sh b/tests/misc/stat-mount.sh
index 2237a9d69..e07e89a79 100755
--- a/tests/misc/stat-mount.sh
+++ b/tests/misc/stat-mount.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test stat -c%m
 
-# Copyright (C) 2010-2022 Free Software Foundation, Inc.
+# Copyright (C) 2010-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/stat-nanoseconds.sh b/tests/misc/stat-nanoseconds.sh
index f64cb9145..d42626e33 100755
--- a/tests/misc/stat-nanoseconds.sh
+++ b/tests/misc/stat-nanoseconds.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Exercise format strings involving %:X, %:Y, etc.
 
-# Copyright (C) 2010-2022 Free Software Foundation, Inc.
+# Copyright (C) 2010-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/stat-printf.pl b/tests/misc/stat-printf.pl
index 32459b1dc..491fb366f 100755
--- a/tests/misc/stat-printf.pl
+++ b/tests/misc/stat-printf.pl
@@ -1,7 +1,7 @@
 #!/usr/bin/perl
 # Test "stat --printf".
 
-# Copyright (C) 2005-2022 Free Software Foundation, Inc.
+# Copyright (C) 2005-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/stat-slash.sh b/tests/misc/stat-slash.sh
index 51358abef..16ecce888 100755
--- a/tests/misc/stat-slash.sh
+++ b/tests/misc/stat-slash.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # demonstrate that stat handles trailing slashes correctly
 
-# Copyright (C) 2009-2022 Free Software Foundation, Inc.
+# Copyright (C) 2009-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/stdbuf.sh b/tests/misc/stdbuf.sh
index 6a21592a7..c4369f74f 100755
--- a/tests/misc/stdbuf.sh
+++ b/tests/misc/stdbuf.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Exercise stdbuf functionality
 
-# Copyright (C) 2009-2022 Free Software Foundation, Inc.
+# Copyright (C) 2009-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/stty-invalid.sh b/tests/misc/stty-invalid.sh
index af49b8d89..7b65d0ca4 100755
--- a/tests/misc/stty-invalid.sh
+++ b/tests/misc/stty-invalid.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Ensure that stty diagnoses invalid inputs, rather than silently misbehaving.
 
-# Copyright (C) 2007-2022 Free Software Foundation, Inc.
+# Copyright (C) 2007-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/stty-pairs.sh b/tests/misc/stty-pairs.sh
index cae750ae5..fd32ba2f1 100755
--- a/tests/misc/stty-pairs.sh
+++ b/tests/misc/stty-pairs.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Make sure stty can parse most of its options - in pairs [expensive].
 
-# Copyright (C) 1998-2022 Free Software Foundation, Inc.
+# Copyright (C) 1998-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/stty-row-col.sh b/tests/misc/stty-row-col.sh
index 89460ac00..2b336e56e 100755
--- a/tests/misc/stty-row-col.sh
+++ b/tests/misc/stty-row-col.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test "stty" with rows and columns.
 
-# Copyright (C) 1998-2022 Free Software Foundation, Inc.
+# Copyright (C) 1998-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/stty.sh b/tests/misc/stty.sh
index 7abcec5af..6254ab88e 100755
--- a/tests/misc/stty.sh
+++ b/tests/misc/stty.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Make sure stty can parse most of its options.
 
-# Copyright (C) 1998-2022 Free Software Foundation, Inc.
+# Copyright (C) 1998-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/sum-sysv.sh b/tests/misc/sum-sysv.sh
index a11e01718..bb3919012 100755
--- a/tests/misc/sum-sysv.sh
+++ b/tests/misc/sum-sysv.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # make sure 'sum -s' works for input whose sum of bytes is larger than 2^32
 
-# Copyright (C) 2001-2022 Free Software Foundation, Inc.
+# Copyright (C) 2001-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/sum.pl b/tests/misc/sum.pl
index 88b53d304..abcecbc7f 100755
--- a/tests/misc/sum.pl
+++ b/tests/misc/sum.pl
@@ -1,7 +1,7 @@
 #!/usr/bin/perl
 # Test "sum".
 
-# Copyright (C) 2000-2022 Free Software Foundation, Inc.
+# Copyright (C) 2000-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/sync.sh b/tests/misc/sync.sh
index d7cc92ccc..daedf4163 100755
--- a/tests/misc/sync.sh
+++ b/tests/misc/sync.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test various sync(1) operations
 
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/tac-2-nonseekable.sh b/tests/misc/tac-2-nonseekable.sh
index 38c82a84e..8e8075fa6 100755
--- a/tests/misc/tac-2-nonseekable.sh
+++ b/tests/misc/tac-2-nonseekable.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # ensure that tac works with non-seekable or quasi-seekable inputs
 
-# Copyright (C) 2011-2022 Free Software Foundation, Inc.
+# Copyright (C) 2011-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/tac-continue.sh b/tests/misc/tac-continue.sh
index c7f98acf0..f01a772ae 100755
--- a/tests/misc/tac-continue.sh
+++ b/tests/misc/tac-continue.sh
@@ -3,7 +3,7 @@
 # when it encounters an error with say the first one.
 # With coreutils-5.2.1 and earlier, this test would fail.
 
-# Copyright (C) 2004-2022 Free Software Foundation, Inc.
+# Copyright (C) 2004-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/tac.pl b/tests/misc/tac.pl
index ad9fc178c..1c188e41c 100755
--- a/tests/misc/tac.pl
+++ b/tests/misc/tac.pl
@@ -1,6 +1,6 @@
 #!/usr/bin/perl
 
-# Copyright (C) 2008-2022 Free Software Foundation, Inc.
+# Copyright (C) 2008-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/tail.pl b/tests/misc/tail.pl
index c3b0a6601..1ff1a907b 100755
--- a/tests/misc/tail.pl
+++ b/tests/misc/tail.pl
@@ -1,7 +1,7 @@
 #!/usr/bin/perl
 # Test tail.
 
-# Copyright (C) 2008-2022 Free Software Foundation, Inc.
+# Copyright (C) 2008-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/tee.sh b/tests/misc/tee.sh
index 0bd91b6cb..b96523186 100755
--- a/tests/misc/tee.sh
+++ b/tests/misc/tee.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # test for basic tee functionality.
 
-# Copyright (C) 2005-2022 Free Software Foundation, Inc.
+# Copyright (C) 2005-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/test-N.sh b/tests/misc/test-N.sh
index e3b1b56d8..58b3976a9 100755
--- a/tests/misc/test-N.sh
+++ b/tests/misc/test-N.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test 'test -N file'.
 
-# Copyright (C) 2018-2022 Free Software Foundation, Inc.
+# Copyright (C) 2018-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/test-diag.pl b/tests/misc/test-diag.pl
index d00a4e929..521020386 100755
--- a/tests/misc/test-diag.pl
+++ b/tests/misc/test-diag.pl
@@ -1,7 +1,7 @@
 #!/usr/bin/perl
 # Test the diagnostics of "test".
 
-# Copyright (C) 2006-2022 Free Software Foundation, Inc.
+# Copyright (C) 2006-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/test.pl b/tests/misc/test.pl
index b77ef7168..dfc396881 100755
--- a/tests/misc/test.pl
+++ b/tests/misc/test.pl
@@ -1,6 +1,6 @@
 #!/usr/bin/perl
 
-# Copyright (C) 2008-2022 Free Software Foundation, Inc.
+# Copyright (C) 2008-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/time-style.sh b/tests/misc/time-style.sh
index c90007591..343383635 100755
--- a/tests/misc/time-style.sh
+++ b/tests/misc/time-style.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test --time-style in programs like 'ls'.
 
-# Copyright (C) 2016-2022 Free Software Foundation, Inc.
+# Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/timeout-blocked.pl b/tests/misc/timeout-blocked.pl
index 0ea6a86df..2ec865f5b 100755
--- a/tests/misc/timeout-blocked.pl
+++ b/tests/misc/timeout-blocked.pl
@@ -1,7 +1,7 @@
 #!/usr/bin/perl
 # Test that timeout handles blocked SIGALRM from its parent.
 
-# Copyright (C) 2013-2022 Free Software Foundation, Inc.
+# Copyright (C) 2013-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/timeout-group.sh b/tests/misc/timeout-group.sh
index 27cfdb7f2..053abc97b 100755
--- a/tests/misc/timeout-group.sh
+++ b/tests/misc/timeout-group.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # test program group handling
 
-# Copyright (C) 2011-2022 Free Software Foundation, Inc.
+# Copyright (C) 2011-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/timeout-large-parameters.sh b/tests/misc/timeout-large-parameters.sh
index dc7c88b72..510d9850c 100755
--- a/tests/misc/timeout-large-parameters.sh
+++ b/tests/misc/timeout-large-parameters.sh
@@ -2,7 +2,7 @@
 # Validate large timeout parameters
 # Separated from standard parameter testing due to kernel overflow bugs.
 
-# Copyright (C) 2008-2022 Free Software Foundation, Inc.
+# Copyright (C) 2008-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/timeout-parameters.sh b/tests/misc/timeout-parameters.sh
index 8c8c29b97..8bb74c5b1 100755
--- a/tests/misc/timeout-parameters.sh
+++ b/tests/misc/timeout-parameters.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Validate timeout parameter combinations
 
-# Copyright (C) 2008-2022 Free Software Foundation, Inc.
+# Copyright (C) 2008-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/timeout.sh b/tests/misc/timeout.sh
index dc6dc96db..088177062 100755
--- a/tests/misc/timeout.sh
+++ b/tests/misc/timeout.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Validate timeout basic operation
 
-# Copyright (C) 2008-2022 Free Software Foundation, Inc.
+# Copyright (C) 2008-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/tr-case-class.sh b/tests/misc/tr-case-class.sh
index 09108e9b0..6f15b8afb 100755
--- a/tests/misc/tr-case-class.sh
+++ b/tests/misc/tr-case-class.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test case conversion classes
 
-# Copyright (C) 2010-2022 Free Software Foundation, Inc.
+# Copyright (C) 2010-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/tr.pl b/tests/misc/tr.pl
index 76bcfbd23..997b8a6d3 100755
--- a/tests/misc/tr.pl
+++ b/tests/misc/tr.pl
@@ -1,6 +1,6 @@
 #!/usr/bin/perl
 
-# Copyright (C) 2008-2022 Free Software Foundation, Inc.
+# Copyright (C) 2008-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/truncate-dangling-symlink.sh b/tests/misc/truncate-dangling-symlink.sh
index 80a6a249e..d2e3b79a4 100755
--- a/tests/misc/truncate-dangling-symlink.sh
+++ b/tests/misc/truncate-dangling-symlink.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Make sure truncate can create a file through a dangling symlink.
 
-# Copyright (C) 2008-2022 Free Software Foundation, Inc.
+# Copyright (C) 2008-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/truncate-dir-fail.sh b/tests/misc/truncate-dir-fail.sh
index e74cd46be..cee78010b 100755
--- a/tests/misc/truncate-dir-fail.sh
+++ b/tests/misc/truncate-dir-fail.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Make sure truncate fails for a directory.
 
-# Copyright (C) 2008-2022 Free Software Foundation, Inc.
+# Copyright (C) 2008-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/truncate-fail-diag.sh b/tests/misc/truncate-fail-diag.sh
index 6e11d15f0..225754832 100755
--- a/tests/misc/truncate-fail-diag.sh
+++ b/tests/misc/truncate-fail-diag.sh
@@ -5,7 +5,7 @@
 # open ("missing/", O_CREAT & (O_WRONLY | O_RDWR), ...) -> EISDIR
 # open ("missing/file", O_CREAT & (O_WRONLY | O_RDWR), ...) -> ENOENT
 
-# Copyright (C) 2008-2022 Free Software Foundation, Inc.
+# Copyright (C) 2008-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/truncate-fifo.sh b/tests/misc/truncate-fifo.sh
index 4c91f8e20..c89555cb1 100755
--- a/tests/misc/truncate-fifo.sh
+++ b/tests/misc/truncate-fifo.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Make sure truncate works on fifos without hanging
 
-# Copyright (C) 2008-2022 Free Software Foundation, Inc.
+# Copyright (C) 2008-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/truncate-no-create-missing.sh b/tests/misc/truncate-no-create-missing.sh
index 2b1802ca5..bf6e6573b 100755
--- a/tests/misc/truncate-no-create-missing.sh
+++ b/tests/misc/truncate-no-create-missing.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Ensure that truncate -c no-such-file doesn't fail.
 
-# Copyright (C) 2008-2022 Free Software Foundation, Inc.
+# Copyright (C) 2008-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/truncate-overflow.sh b/tests/misc/truncate-overflow.sh
index d06ad5742..22bda70bb 100755
--- a/tests/misc/truncate-overflow.sh
+++ b/tests/misc/truncate-overflow.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Validate truncate integer overflow
 
-# Copyright (C) 2008-2022 Free Software Foundation, Inc.
+# Copyright (C) 2008-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/truncate-owned-by-other.sh b/tests/misc/truncate-owned-by-other.sh
index 0b3836f41..f213e8fe3 100755
--- a/tests/misc/truncate-owned-by-other.sh
+++ b/tests/misc/truncate-owned-by-other.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Demonstrate that "truncate -s0 writable-but-owned-by-other" works.
 
-# Copyright (C) 2008-2022 Free Software Foundation, Inc.
+# Copyright (C) 2008-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/truncate-parameters.sh b/tests/misc/truncate-parameters.sh
index 826ea630e..a7f5685d1 100755
--- a/tests/misc/truncate-parameters.sh
+++ b/tests/misc/truncate-parameters.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Validate truncate parameter combinations
 
-# Copyright (C) 2008-2022 Free Software Foundation, Inc.
+# Copyright (C) 2008-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/truncate-relative.sh b/tests/misc/truncate-relative.sh
index 9f7a2bbd5..57be8b457 100755
--- a/tests/misc/truncate-relative.sh
+++ b/tests/misc/truncate-relative.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Validate truncate relative sizes
 
-# Copyright (C) 2008-2022 Free Software Foundation, Inc.
+# Copyright (C) 2008-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/tsort.pl b/tests/misc/tsort.pl
index 75801804c..ca3aa3b6d 100755
--- a/tests/misc/tsort.pl
+++ b/tests/misc/tsort.pl
@@ -1,7 +1,7 @@
 #!/usr/bin/perl
 # Test "tsort".
 
-# Copyright (C) 1999-2022 Free Software Foundation, Inc.
+# Copyright (C) 1999-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/tty-eof.pl b/tests/misc/tty-eof.pl
index 291460f2f..d429cbb8f 100755
--- a/tests/misc/tty-eof.pl
+++ b/tests/misc/tty-eof.pl
@@ -4,7 +4,7 @@
 # Do the same for all programs that can read stdin,
 # require no arguments and that write to standard output.
 
-# Copyright (C) 2003-2022 Free Software Foundation, Inc.
+# Copyright (C) 2003-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/tty.sh b/tests/misc/tty.sh
index c87ec599a..0b0ff661d 100755
--- a/tests/misc/tty.sh
+++ b/tests/misc/tty.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test 'tty'.
 
-# Copyright 2017-2022 Free Software Foundation, Inc.
+# Copyright 2017-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/unexpand.pl b/tests/misc/unexpand.pl
index 2e1906fe2..d78a1bc2f 100755
--- a/tests/misc/unexpand.pl
+++ b/tests/misc/unexpand.pl
@@ -1,7 +1,7 @@
 #!/usr/bin/perl
 # Test "unexpand".
 
-# Copyright (C) 2000-2022 Free Software Foundation, Inc.
+# Copyright (C) 2000-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/uniq-collate.sh b/tests/misc/uniq-collate.sh
index 8f2cfcf40..76b1aaa5f 100755
--- a/tests/misc/uniq-collate.sh
+++ b/tests/misc/uniq-collate.sh
@@ -3,7 +3,7 @@
 # items which compared equal with strcoll()
 # So ensure we avoid strcoll() for the following cases.
 
-# Copyright (C) 2020-2022 Free Software Foundation, Inc.
+# Copyright (C) 2020-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/uniq-perf.sh b/tests/misc/uniq-perf.sh
index 41cde320b..b4af6734d 100755
--- a/tests/misc/uniq-perf.sh
+++ b/tests/misc/uniq-perf.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # before coreutils-8.10, seq 100000|uniq -f 10000000000 would run for days
 
-# Copyright (C) 2011-2022 Free Software Foundation, Inc.
+# Copyright (C) 2011-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/uniq.pl b/tests/misc/uniq.pl
index aa163cdd7..a6354dc3c 100755
--- a/tests/misc/uniq.pl
+++ b/tests/misc/uniq.pl
@@ -1,7 +1,7 @@
 #!/usr/bin/perl
 # Test uniq.
 
-# Copyright (C) 2008-2022 Free Software Foundation, Inc.
+# Copyright (C) 2008-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/usage_vs_getopt.sh b/tests/misc/usage_vs_getopt.sh
index 59e9b093e..3ffb7b0b1 100755
--- a/tests/misc/usage_vs_getopt.sh
+++ b/tests/misc/usage_vs_getopt.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Verify that all options mentioned in usage are recognized by getopt.
 
-# Copyright (C) 2017-2022 Free Software Foundation, Inc.
+# Copyright (C) 2017-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/wc-files0-from.pl b/tests/misc/wc-files0-from.pl
index 597b647ca..84da7808c 100755
--- a/tests/misc/wc-files0-from.pl
+++ b/tests/misc/wc-files0-from.pl
@@ -2,7 +2,7 @@
 # Exercise wc's --files0-from option.
 # FIXME: keep this file in sync with tests/du/files0-from.
 
-# Copyright (C) 2006-2022 Free Software Foundation, Inc.
+# Copyright (C) 2006-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/wc-files0.sh b/tests/misc/wc-files0.sh
index 657b1ffdc..175230514 100755
--- a/tests/misc/wc-files0.sh
+++ b/tests/misc/wc-files0.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Show that wc's new --files0-from option works.
 
-# Copyright (C) 2006-2022 Free Software Foundation, Inc.
+# Copyright (C) 2006-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/wc-nbsp.sh b/tests/misc/wc-nbsp.sh
index 7b2658f6a..584a8f735 100755
--- a/tests/misc/wc-nbsp.sh
+++ b/tests/misc/wc-nbsp.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test non breaking space handling
 
-# Copyright (C) 2019-2022 Free Software Foundation, Inc.
+# Copyright (C) 2019-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/wc-parallel.sh b/tests/misc/wc-parallel.sh
index 6a28e7fbe..0319f6e89 100755
--- a/tests/misc/wc-parallel.sh
+++ b/tests/misc/wc-parallel.sh
@@ -2,7 +2,7 @@
 # Ensure that wc prints counts atomically
 # so that concurrent processes don't intersperse their output
 
-# Copyright (C) 2009-2022 Free Software Foundation, Inc.
+# Copyright (C) 2009-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/wc-proc.sh b/tests/misc/wc-proc.sh
index 030872a91..5eb43b982 100755
--- a/tests/misc/wc-proc.sh
+++ b/tests/misc/wc-proc.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test wc on /proc and /sys files.
 
-# Copyright 2014-2022 Free Software Foundation, Inc.
+# Copyright 2014-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/wc-total.sh b/tests/misc/wc-total.sh
index cc6123ab5..4848111cd 100755
--- a/tests/misc/wc-total.sh
+++ b/tests/misc/wc-total.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Show that wc's --total option works.
 
-# Copyright (C) 2022 Free Software Foundation, Inc.
+# Copyright (C) 2022-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/wc.pl b/tests/misc/wc.pl
index 5fbe03d12..ed2bc43e4 100755
--- a/tests/misc/wc.pl
+++ b/tests/misc/wc.pl
@@ -1,7 +1,7 @@
 #!/usr/bin/perl
 # Basic tests for "wc".
 
-# Copyright (C) 1997-2022 Free Software Foundation, Inc.
+# Copyright (C) 1997-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/xattr.sh b/tests/misc/xattr.sh
index e901a0555..141657825 100755
--- a/tests/misc/xattr.sh
+++ b/tests/misc/xattr.sh
@@ -3,7 +3,7 @@
 # attributes and install does not preserve extended attributes.
 # cp -a should preserve xattr, error diagnostics should not be displayed
 
-# Copyright (C) 2009-2022 Free Software Foundation, Inc.
+# Copyright (C) 2009-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/xstrtol.pl b/tests/misc/xstrtol.pl
index 5b59b057b..dfdaee0ae 100755
--- a/tests/misc/xstrtol.pl
+++ b/tests/misc/xstrtol.pl
@@ -1,7 +1,7 @@
 #!/usr/bin/perl
 # exercise xstrtol's diagnostics via pr
 
-# Copyright (C) 2007-2022 Free Software Foundation, Inc.
+# Copyright (C) 2007-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/misc/yes.sh b/tests/misc/yes.sh
index 9ba6a031a..9cd07d4d8 100755
--- a/tests/misc/yes.sh
+++ b/tests/misc/yes.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Validate yes buffer handling
 
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/mkdir/p-1.sh b/tests/mkdir/p-1.sh
index e9be94ed9..e2d020cca 100755
--- a/tests/mkdir/p-1.sh
+++ b/tests/mkdir/p-1.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test "mkdir -p".
 
-# Copyright (C) 1997-2022 Free Software Foundation, Inc.
+# Copyright (C) 1997-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/mkdir/p-2.sh b/tests/mkdir/p-2.sh
index 2f641a8db..8a5a50d69 100755
--- a/tests/mkdir/p-2.sh
+++ b/tests/mkdir/p-2.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Just like p-1, but with an absolute path.
 
-# Copyright (C) 1997-2022 Free Software Foundation, Inc.
+# Copyright (C) 1997-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/mkdir/p-3.sh b/tests/mkdir/p-3.sh
index c31515aba..30645e3a1 100755
--- a/tests/mkdir/p-3.sh
+++ b/tests/mkdir/p-3.sh
@@ -3,7 +3,7 @@
 # causes immediate failure.  Also, ensure that we don't create
 # subsequent, relative command-line arguments in the wrong place.
 
-# Copyright (C) 2005-2022 Free Software Foundation, Inc.
+# Copyright (C) 2005-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/mkdir/p-acl.sh b/tests/mkdir/p-acl.sh
index 59ddc606b..b56210554 100755
--- a/tests/mkdir/p-acl.sh
+++ b/tests/mkdir/p-acl.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test "mkdir -p" with default ACLs.
 
-# Copyright (C) 1997-2022 Free Software Foundation, Inc.
+# Copyright (C) 1997-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/mkdir/p-slashdot.sh b/tests/mkdir/p-slashdot.sh
index 1bd055e91..f50fa4444 100755
--- a/tests/mkdir/p-slashdot.sh
+++ b/tests/mkdir/p-slashdot.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Ensure that mkdir -p works with arguments specified with a trailing "/.".
 
-# Copyright (C) 2005-2022 Free Software Foundation, Inc.
+# Copyright (C) 2005-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/mkdir/p-thru-slink.sh b/tests/mkdir/p-thru-slink.sh
index 7948ef416..15a764eb3 100755
--- a/tests/mkdir/p-thru-slink.sh
+++ b/tests/mkdir/p-thru-slink.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Ensure that mkdir -p foo/bar works when foo is a symbolic link to a directory
 
-# Copyright (C) 2005-2022 Free Software Foundation, Inc.
+# Copyright (C) 2005-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/mkdir/p-v.sh b/tests/mkdir/p-v.sh
index c9c751115..4fa619e1a 100755
--- a/tests/mkdir/p-v.sh
+++ b/tests/mkdir/p-v.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test mkdir -pv.
 
-# Copyright (C) 2006-2022 Free Software Foundation, Inc.
+# Copyright (C) 2006-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/mkdir/parents.sh b/tests/mkdir/parents.sh
index 7debfbb9b..c6c0a0ba7 100755
--- a/tests/mkdir/parents.sh
+++ b/tests/mkdir/parents.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # make sure mkdir's -p options works properly
 
-# Copyright (C) 2000-2022 Free Software Foundation, Inc.
+# Copyright (C) 2000-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/mkdir/perm.sh b/tests/mkdir/perm.sh
index 3a904a9fb..62ded0fef 100755
--- a/tests/mkdir/perm.sh
+++ b/tests/mkdir/perm.sh
@@ -2,7 +2,7 @@
 # Verify that mkdir's '-m MODE' option works properly
 # with various umask settings.
 
-# Copyright (C) 2000-2022 Free Software Foundation, Inc.
+# Copyright (C) 2000-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/mkdir/restorecon.sh b/tests/mkdir/restorecon.sh
index dfffce875..7ac9aa300 100755
--- a/tests/mkdir/restorecon.sh
+++ b/tests/mkdir/restorecon.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # test mkdir, mknod, mkfifo -Z
 
-# Copyright (C) 2013-2022 Free Software Foundation, Inc.
+# Copyright (C) 2013-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/mkdir/selinux.sh b/tests/mkdir/selinux.sh
index 8958edf13..58d280a6d 100755
--- a/tests/mkdir/selinux.sh
+++ b/tests/mkdir/selinux.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # ensure that an invalid context doesn't cause a segfault
 
-# Copyright (C) 2008-2022 Free Software Foundation, Inc.
+# Copyright (C) 2008-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/mkdir/smack-no-root.sh b/tests/mkdir/smack-no-root.sh
index 4b4eb88cb..9d3f48f16 100755
--- a/tests/mkdir/smack-no-root.sh
+++ b/tests/mkdir/smack-no-root.sh
@@ -3,7 +3,7 @@
 # Derived from tests/mkdir/selinux.sh.
 # Ensure that an unsettable SMACK label doesn't cause a segfault.
 
-# Copyright (C) 2014-2022 Free Software Foundation, Inc.
+# Copyright (C) 2014-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/mkdir/smack-root.sh b/tests/mkdir/smack-root.sh
index cb13b88ee..8a10c73f8 100755
--- a/tests/mkdir/smack-root.sh
+++ b/tests/mkdir/smack-root.sh
@@ -3,7 +3,7 @@
 # Derived from tests/mkdir/selinux.sh.
 # Ensure that SMACK label gets set.
 
-# Copyright (C) 2014-2022 Free Software Foundation, Inc.
+# Copyright (C) 2014-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/mkdir/special-1.sh b/tests/mkdir/special-1.sh
index 116bf3f49..00833b189 100755
--- a/tests/mkdir/special-1.sh
+++ b/tests/mkdir/special-1.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # verify that mkdir honors special bits in MODE
 
-# Copyright (C) 2000-2022 Free Software Foundation, Inc.
+# Copyright (C) 2000-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/mkdir/t-slash.sh b/tests/mkdir/t-slash.sh
index 3e0626148..55f1c3d64 100755
--- a/tests/mkdir/t-slash.sh
+++ b/tests/mkdir/t-slash.sh
@@ -2,7 +2,7 @@
 # Ensure that mkdir works with arguments specified with and without
 # a trailing slash.
 
-# Copyright (C) 2000-2022 Free Software Foundation, Inc.
+# Copyright (C) 2000-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/mkdir/writable-under-readonly.sh b/tests/mkdir/writable-under-readonly.sh
index c5422df51..ee7caa6ff 100755
--- a/tests/mkdir/writable-under-readonly.sh
+++ b/tests/mkdir/writable-under-readonly.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # FIXME: convert this to a root-only test.
 
-# Copyright (C) 2005-2022 Free Software Foundation, Inc.
+# Copyright (C) 2005-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/mv/acl.sh b/tests/mv/acl.sh
index bc8341af6..8065a3a83 100755
--- a/tests/mv/acl.sh
+++ b/tests/mv/acl.sh
@@ -2,7 +2,7 @@
 # move files/directories across file system boundaries
 # and make sure acls are preserved
 
-# Copyright (C) 2005-2022 Free Software Foundation, Inc.
+# Copyright (C) 2005-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/mv/atomic.sh b/tests/mv/atomic.sh
index 1b1d35737..145e89da0 100755
--- a/tests/mv/atomic.sh
+++ b/tests/mv/atomic.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # ensure that mv doesn't first unlink its destination in one particular case
 
-# Copyright (C) 2006-2022 Free Software Foundation, Inc.
+# Copyright (C) 2006-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/mv/atomic2.sh b/tests/mv/atomic2.sh
index cad9276e6..fedf392de 100755
--- a/tests/mv/atomic2.sh
+++ b/tests/mv/atomic2.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # ensure that mv doesn't first unlink a multi-hard-linked destination
 
-# Copyright (C) 2008-2022 Free Software Foundation, Inc.
+# Copyright (C) 2008-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/mv/backup-dir.sh b/tests/mv/backup-dir.sh
index 2f708b5b6..d967b458f 100755
--- a/tests/mv/backup-dir.sh
+++ b/tests/mv/backup-dir.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Ensure "mv --verbose --backup" works the same for dirs and non-dirs.
 
-# Copyright (C) 2006-2022 Free Software Foundation, Inc.
+# Copyright (C) 2006-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/mv/backup-is-src.sh b/tests/mv/backup-is-src.sh
index 67ab05a99..0a4110c7d 100755
--- a/tests/mv/backup-is-src.sh
+++ b/tests/mv/backup-is-src.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Force mv to use the copying code.
 
-# Copyright (C) 1998-2022 Free Software Foundation, Inc.
+# Copyright (C) 1998-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/mv/childproof.sh b/tests/mv/childproof.sh
index f9c2f6d69..a5a830ef5 100755
--- a/tests/mv/childproof.sh
+++ b/tests/mv/childproof.sh
@@ -3,7 +3,7 @@
 # With fileutils-4.1 and earlier, this test would fail for cp and mv.
 # With coreutils-6.9 and earlier, this test would fail for ln.
 
-# Copyright (C) 2001-2022 Free Software Foundation, Inc.
+# Copyright (C) 2001-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/mv/diag.sh b/tests/mv/diag.sh
index c0a558548..abcb335e1 100755
--- a/tests/mv/diag.sh
+++ b/tests/mv/diag.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # make sure we get proper diagnostics: e.g., with --target-dir=d but no args
 
-# Copyright (C) 2000-2022 Free Software Foundation, Inc.
+# Copyright (C) 2000-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/mv/dir-file.sh b/tests/mv/dir-file.sh
index 8a5441243..e70f63e95 100755
--- a/tests/mv/dir-file.sh
+++ b/tests/mv/dir-file.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # mv must fail when src and dest are mismatched directory/non-directory.
 
-# Copyright (C) 2000-2022 Free Software Foundation, Inc.
+# Copyright (C) 2000-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/mv/dir2dir.sh b/tests/mv/dir2dir.sh
index b5b356223..ea99eca56 100755
--- a/tests/mv/dir2dir.sh
+++ b/tests/mv/dir2dir.sh
@@ -2,7 +2,7 @@
 # Ensure that mv prints the right diagnostic for a dir->dir move
 # where the destination directory is not empty.
 
-# Copyright (C) 2006-2022 Free Software Foundation, Inc.
+# Copyright (C) 2006-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/mv/dup-source.sh b/tests/mv/dup-source.sh
index 4fa666a76..7f9508669 100755
--- a/tests/mv/dup-source.sh
+++ b/tests/mv/dup-source.sh
@@ -4,7 +4,7 @@
 # made this fail:  cp a a d/
 # Ensure that mv fails with a similar command.
 
-# Copyright (C) 2001-2022 Free Software Foundation, Inc.
+# Copyright (C) 2001-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/mv/force.sh b/tests/mv/force.sh
index 41968efe2..427cc8814 100755
--- a/tests/mv/force.sh
+++ b/tests/mv/force.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # move a file onto itself
 
-# Copyright (C) 1999-2022 Free Software Foundation, Inc.
+# Copyright (C) 1999-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/mv/hard-2.sh b/tests/mv/hard-2.sh
index ceb41a5fa..f0a683e31 100755
--- a/tests/mv/hard-2.sh
+++ b/tests/mv/hard-2.sh
@@ -2,7 +2,7 @@
 # Ensure that moving hard-linked arguments onto existing destinations works.
 # Likewise when using cp --preserve=link.
 
-# Copyright (C) 2003-2022 Free Software Foundation, Inc.
+# Copyright (C) 2003-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/mv/hard-3.sh b/tests/mv/hard-3.sh
index 970ff054f..2d22c4045 100755
--- a/tests/mv/hard-3.sh
+++ b/tests/mv/hard-3.sh
@@ -2,7 +2,7 @@
 # Ensure that using 'cp --preserve=link' to copy hard-linked arguments
 # onto existing destinations works, even when one of the link operations fails.
 
-# Copyright (C) 2003-2022 Free Software Foundation, Inc.
+# Copyright (C) 2003-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/mv/hard-4.sh b/tests/mv/hard-4.sh
index f725b8771..7621f6d7d 100755
--- a/tests/mv/hard-4.sh
+++ b/tests/mv/hard-4.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # ensure that mv maintains a in this case: touch a; ln a b; mv a b
 
-# Copyright (C) 2003-2022 Free Software Foundation, Inc.
+# Copyright (C) 2003-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/mv/hard-link-1.sh b/tests/mv/hard-link-1.sh
index 524fc1336..94599f239 100755
--- a/tests/mv/hard-link-1.sh
+++ b/tests/mv/hard-link-1.sh
@@ -2,7 +2,7 @@
 # move a directory containing hard-linked files and
 # make sure the links are preserved
 
-# Copyright (C) 1998-2022 Free Software Foundation, Inc.
+# Copyright (C) 1998-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/mv/hardlink-case.sh b/tests/mv/hardlink-case.sh
index 35728b97d..ad0cfdfef 100755
--- a/tests/mv/hardlink-case.sh
+++ b/tests/mv/hardlink-case.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Ensure multi-hardlinked files are not lost on case insensitive file systems
 
-# Copyright (C) 2014-2022 Free Software Foundation, Inc.
+# Copyright (C) 2014-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/mv/i-1.pl b/tests/mv/i-1.pl
index 2d852d6a1..ac4d74640 100755
--- a/tests/mv/i-1.pl
+++ b/tests/mv/i-1.pl
@@ -1,7 +1,7 @@
 #!/usr/bin/perl
 # Make sure a 'n' reply to 'mv -i...' aborts the move operation.
 
-# Copyright (C) 2001-2022 Free Software Foundation, Inc.
+# Copyright (C) 2001-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/mv/i-2.sh b/tests/mv/i-2.sh
index a7b79395d..d8e0524be 100755
--- a/tests/mv/i-2.sh
+++ b/tests/mv/i-2.sh
@@ -2,7 +2,7 @@
 # Test both cp and mv for their behavior with -if and -fi
 # The standards (POSIX and SuS) dictate annoyingly inconsistent behavior.
 
-# Copyright (C) 2000-2022 Free Software Foundation, Inc.
+# Copyright (C) 2000-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/mv/i-3.sh b/tests/mv/i-3.sh
index c631f4eac..4162d163c 100755
--- a/tests/mv/i-3.sh
+++ b/tests/mv/i-3.sh
@@ -2,7 +2,7 @@
 # Make sure that 'mv file unwritable-file' prompts the user
 # and that 'mv -f file unwritable-file' doesn't.
 
-# Copyright (C) 2001-2022 Free Software Foundation, Inc.
+# Copyright (C) 2001-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/mv/i-4.sh b/tests/mv/i-4.sh
index 8648be70c..4b903426a 100755
--- a/tests/mv/i-4.sh
+++ b/tests/mv/i-4.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # make sure 'mv -i a b' does its job with a positive response
 
-# Copyright (C) 2001-2022 Free Software Foundation, Inc.
+# Copyright (C) 2001-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/mv/i-5.sh b/tests/mv/i-5.sh
index c7e269615..66e9cf067 100755
--- a/tests/mv/i-5.sh
+++ b/tests/mv/i-5.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Make sure 'mv -i dir file' prompts before failing.
 
-# Copyright (C) 2006-2022 Free Software Foundation, Inc.
+# Copyright (C) 2006-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/mv/i-link-no.sh b/tests/mv/i-link-no.sh
index e135243cf..747c542cb 100755
--- a/tests/mv/i-link-no.sh
+++ b/tests/mv/i-link-no.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Show that mv doesn't preserve links to files the user has declined to move.
 
-# Copyright (C) 2002-2022 Free Software Foundation, Inc.
+# Copyright (C) 2002-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/mv/into-self-2.sh b/tests/mv/into-self-2.sh
index 83a7268ee..337d2b244 100755
--- a/tests/mv/into-self-2.sh
+++ b/tests/mv/into-self-2.sh
@@ -3,7 +3,7 @@
 # Consider the case where SRC and DEST are on different
 # partitions and DEST is a symlink to SRC.
 
-# Copyright (C) 1998-2022 Free Software Foundation, Inc.
+# Copyright (C) 1998-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/mv/into-self-3.sh b/tests/mv/into-self-3.sh
index cd3bcf04c..31612d699 100755
--- a/tests/mv/into-self-3.sh
+++ b/tests/mv/into-self-3.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # move a directory into itself, with a twist
 
-# Copyright (C) 1998-2022 Free Software Foundation, Inc.
+# Copyright (C) 1998-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/mv/into-self-4.sh b/tests/mv/into-self-4.sh
index 39446a5a8..0b2664a1e 100755
--- a/tests/mv/into-self-4.sh
+++ b/tests/mv/into-self-4.sh
@@ -2,7 +2,7 @@
 # confirm that 'mv symlink symlink' doesn't remove symlink
 # Based on an example from David Luyer.
 
-# Copyright (C) 2001-2022 Free Software Foundation, Inc.
+# Copyright (C) 2001-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/mv/into-self.sh b/tests/mv/into-self.sh
index 38346400e..66b65ce5f 100755
--- a/tests/mv/into-self.sh
+++ b/tests/mv/into-self.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Demonstrate how mv fails when it tries to move a directory into itself.
 
-# Copyright (C) 1998-2022 Free Software Foundation, Inc.
+# Copyright (C) 1998-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/mv/leak-fd.sh b/tests/mv/leak-fd.sh
index 8d2940eba..d97662786 100755
--- a/tests/mv/leak-fd.sh
+++ b/tests/mv/leak-fd.sh
@@ -2,7 +2,7 @@
 # Exercise mv's file-descriptor-leak bug, reported against coreutils-5.2.1
 # and fixed (properly) on 2004-10-21.
 
-# Copyright (C) 2004-2022 Free Software Foundation, Inc.
+# Copyright (C) 2004-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/mv/mv-n.sh b/tests/mv/mv-n.sh
index 3733d6586..49db26841 100755
--- a/tests/mv/mv-n.sh
+++ b/tests/mv/mv-n.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test whether mv -n works as documented (not overwrite target).
 
-# Copyright (C) 2006-2022 Free Software Foundation, Inc.
+# Copyright (C) 2006-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/mv/mv-special-1.sh b/tests/mv/mv-special-1.sh
index 6abc916d1..af1b793f6 100755
--- a/tests/mv/mv-special-1.sh
+++ b/tests/mv/mv-special-1.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test "mv" with special files.
 
-# Copyright (C) 1998-2022 Free Software Foundation, Inc.
+# Copyright (C) 1998-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/mv/no-target-dir.sh b/tests/mv/no-target-dir.sh
index bfadcb00c..82df49bd5 100755
--- a/tests/mv/no-target-dir.sh
+++ b/tests/mv/no-target-dir.sh
@@ -2,7 +2,7 @@
 # ensure that --no-target-directory (-T) works when the destination is
 # an empty directory.
 
-# Copyright (C) 2006-2022 Free Software Foundation, Inc.
+# Copyright (C) 2006-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/mv/part-fail.sh b/tests/mv/part-fail.sh
index e6170251f..19c41403b 100755
--- a/tests/mv/part-fail.sh
+++ b/tests/mv/part-fail.sh
@@ -4,7 +4,7 @@
 # This is a bit fragile since it relies on the string used
 # for EPERM: 'permission denied'.
 
-# Copyright (C) 2002-2022 Free Software Foundation, Inc.
+# Copyright (C) 2002-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/mv/part-hardlink.sh b/tests/mv/part-hardlink.sh
index b2925849d..9c65684e1 100755
--- a/tests/mv/part-hardlink.sh
+++ b/tests/mv/part-hardlink.sh
@@ -4,7 +4,7 @@
 # For additional constraints, see the comment in copy.c.
 # Before coreutils-5.2.1, this test would fail.
 
-# Copyright (C) 2004-2022 Free Software Foundation, Inc.
+# Copyright (C) 2004-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/mv/part-rename.sh b/tests/mv/part-rename.sh
index c9fb9b648..5f88550f1 100755
--- a/tests/mv/part-rename.sh
+++ b/tests/mv/part-rename.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test various cases for moving directories across file systems
 
-# Copyright (C) 2000-2022 Free Software Foundation, Inc.
+# Copyright (C) 2000-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/mv/part-symlink.sh b/tests/mv/part-symlink.sh
index 563757a0f..d6cd836d7 100755
--- a/tests/mv/part-symlink.sh
+++ b/tests/mv/part-symlink.sh
@@ -2,7 +2,7 @@
 # make sure cp and mv can handle many combinations of local and
 # other-partition regular/symlink'd files.
 
-# Copyright (C) 2000-2022 Free Software Foundation, Inc.
+# Copyright (C) 2000-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/mv/partition-perm.sh b/tests/mv/partition-perm.sh
index c813ec83f..566346c2b 100755
--- a/tests/mv/partition-perm.sh
+++ b/tests/mv/partition-perm.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Make sure permissions are preserved when moving from one partition to another.
 
-# Copyright (C) 1999-2022 Free Software Foundation, Inc.
+# Copyright (C) 1999-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/mv/perm-1.sh b/tests/mv/perm-1.sh
index 079201aa1..50eb0a228 100755
--- a/tests/mv/perm-1.sh
+++ b/tests/mv/perm-1.sh
@@ -2,7 +2,7 @@
 # ensure that mv gives one diagnostic, not two, when failing
 # due to lack of permissions
 
-# Copyright (C) 2002-2022 Free Software Foundation, Inc.
+# Copyright (C) 2002-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/mv/sticky-to-xpart.sh b/tests/mv/sticky-to-xpart.sh
index e9d87a3ad..860ddd3af 100755
--- a/tests/mv/sticky-to-xpart.sh
+++ b/tests/mv/sticky-to-xpart.sh
@@ -4,7 +4,7 @@
 # mv: cannot remove 'x': Operation not permitted
 # Affects coreutils-6.0-6.9.
 
-# Copyright (C) 2007-2022 Free Software Foundation, Inc.
+# Copyright (C) 2007-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/mv/symlink-onto-hardlink-to-self.sh b/tests/mv/symlink-onto-hardlink-to-self.sh
index 686cfbbe9..b53a41a97 100755
--- a/tests/mv/symlink-onto-hardlink-to-self.sh
+++ b/tests/mv/symlink-onto-hardlink-to-self.sh
@@ -4,7 +4,7 @@
 # but not NetBSD), prior to coreutils-8.16, the mv would successfully perform
 # a no-op.  I.e., surprisingly, mv s1 s2 would succeed, yet fail to remove s1.
 
-# Copyright (C) 2012-2022 Free Software Foundation, Inc.
+# Copyright (C) 2012-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/mv/symlink-onto-hardlink.sh b/tests/mv/symlink-onto-hardlink.sh
index c24e3fc0e..01c138ac3 100755
--- a/tests/mv/symlink-onto-hardlink.sh
+++ b/tests/mv/symlink-onto-hardlink.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Ensure that mv works with a few symlink-onto-hard-link cases.
 
-# Copyright (C) 2012-2022 Free Software Foundation, Inc.
+# Copyright (C) 2012-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/mv/to-symlink.sh b/tests/mv/to-symlink.sh
index f24949878..018bfe20a 100755
--- a/tests/mv/to-symlink.sh
+++ b/tests/mv/to-symlink.sh
@@ -2,7 +2,7 @@
 # Make sure that the copying code used in an inter-partition
 # move unlinks a destination symlink before opening it.
 
-# Copyright (C) 1999-2022 Free Software Foundation, Inc.
+# Copyright (C) 1999-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/mv/trailing-slash.sh b/tests/mv/trailing-slash.sh
index 9675d2021..3d41085ae 100755
--- a/tests/mv/trailing-slash.sh
+++ b/tests/mv/trailing-slash.sh
@@ -4,7 +4,7 @@
 # Also, ensure that "mv dir non-exist-dir/" works.
 # Also, ensure that "cp dir non-exist-dir/" works.
 
-# Copyright (C) 2004-2022 Free Software Foundation, Inc.
+# Copyright (C) 2004-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/mv/update.sh b/tests/mv/update.sh
index 463744820..d3ec6120c 100755
--- a/tests/mv/update.sh
+++ b/tests/mv/update.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # make sure --update works as advertised
 
-# Copyright (C) 2001-2022 Free Software Foundation, Inc.
+# Copyright (C) 2001-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/other-fs-tmpdir b/tests/other-fs-tmpdir
index 6d39ffd40..b4d270eb3 100644
--- a/tests/other-fs-tmpdir
+++ b/tests/other-fs-tmpdir
@@ -4,7 +4,7 @@
 # of the current directory.  If one is found, create a temporary directory
 # inside it.
 
-# Copyright (C) 1998-2022 Free Software Foundation, Inc.
+# Copyright (C) 1998-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/pr/pr-tests.pl b/tests/pr/pr-tests.pl
index 7ac6d4ccd..265e6e108 100755
--- a/tests/pr/pr-tests.pl
+++ b/tests/pr/pr-tests.pl
@@ -1,7 +1,7 @@
 #!/usr/bin/perl
 # Test pr.
 
-# Copyright (C) 2008-2022 Free Software Foundation, Inc.
+# Copyright (C) 2008-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/readlink/can-e.sh b/tests/readlink/can-e.sh
index ff263b256..6237e8d9a 100755
--- a/tests/readlink/can-e.sh
+++ b/tests/readlink/can-e.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # tests for canonicalize-existing mode (readlink -e).
 
-# Copyright (C) 2004-2022 Free Software Foundation, Inc.
+# Copyright (C) 2004-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/readlink/can-f.sh b/tests/readlink/can-f.sh
index e0bece513..83460e516 100755
--- a/tests/readlink/can-f.sh
+++ b/tests/readlink/can-f.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # tests for canonicalize mode (readlink -f).
 
-# Copyright (C) 2004-2022 Free Software Foundation, Inc.
+# Copyright (C) 2004-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/readlink/can-m.sh b/tests/readlink/can-m.sh
index 3ad3eebc1..4cc312298 100755
--- a/tests/readlink/can-m.sh
+++ b/tests/readlink/can-m.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # tests for canonicalize-missing mode (readlink -m).
 
-# Copyright (C) 2004-2022 Free Software Foundation, Inc.
+# Copyright (C) 2004-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/readlink/multi.sh b/tests/readlink/multi.sh
index 679607735..5de903d76 100755
--- a/tests/readlink/multi.sh
+++ b/tests/readlink/multi.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # test multiple argument handling.
 
-# Copyright (C) 2012-2022 Free Software Foundation, Inc.
+# Copyright (C) 2012-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/readlink/rl-1.sh b/tests/readlink/rl-1.sh
index 24b2ad7bb..3bdb0332c 100755
--- a/tests/readlink/rl-1.sh
+++ b/tests/readlink/rl-1.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # test for readlink mode.
 
-# Copyright (C) 2004-2022 Free Software Foundation, Inc.
+# Copyright (C) 2004-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/rm/cycle.sh b/tests/rm/cycle.sh
index 4cb958a88..e967ce56a 100755
--- a/tests/rm/cycle.sh
+++ b/tests/rm/cycle.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # rm (coreutils-4.5.4) could be tricked into mistakenly reporting a cycle.
 
-# Copyright (C) 2003-2022 Free Software Foundation, Inc.
+# Copyright (C) 2003-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/rm/d-1.sh b/tests/rm/d-1.sh
index 1fbbffd21..7b5778603 100755
--- a/tests/rm/d-1.sh
+++ b/tests/rm/d-1.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test "rm --dir --verbose".
 
-# Copyright (C) 2012-2022 Free Software Foundation, Inc.
+# Copyright (C) 2012-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/rm/d-2.sh b/tests/rm/d-2.sh
index 901563ed7..e235508ff 100755
--- a/tests/rm/d-2.sh
+++ b/tests/rm/d-2.sh
@@ -2,7 +2,7 @@
 # Ensure that 'rm -d dir' (i.e., without --recursive) gives a reasonable
 # diagnostic when failing.
 
-# Copyright (C) 2012-2022 Free Software Foundation, Inc.
+# Copyright (C) 2012-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/rm/d-3.sh b/tests/rm/d-3.sh
index 8613a2f81..ed6f171c7 100755
--- a/tests/rm/d-3.sh
+++ b/tests/rm/d-3.sh
@@ -2,7 +2,7 @@
 # Ensure that 'rm -d -i dir' (i.e., without --recursive) gives a prompt and
 # then deletes the directory if it is empty
 
-# Copyright (C) 2012-2022 Free Software Foundation, Inc.
+# Copyright (C) 2012-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/rm/dangling-symlink.sh b/tests/rm/dangling-symlink.sh
index 4208080fe..ce82e0da9 100755
--- a/tests/rm/dangling-symlink.sh
+++ b/tests/rm/dangling-symlink.sh
@@ -4,7 +4,7 @@
 # But for fileutils-4.1.9, it would do the former and
 # for fileutils-4.1.10 the latter.
 
-# Copyright (C) 2002-2022 Free Software Foundation, Inc.
+# Copyright (C) 2002-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/rm/deep-1.sh b/tests/rm/deep-1.sh
index 41fac846d..8741835f7 100755
--- a/tests/rm/deep-1.sh
+++ b/tests/rm/deep-1.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test "rm" with a deep hierarchy.
 
-# Copyright (C) 1997-2022 Free Software Foundation, Inc.
+# Copyright (C) 1997-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/rm/deep-2.sh b/tests/rm/deep-2.sh
index 01c2104db..ddf8564e0 100755
--- a/tests/rm/deep-2.sh
+++ b/tests/rm/deep-2.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Ensure rm -r DIR does not prompt for very long full relative names in DIR.
 
-# Copyright (C) 2008-2022 Free Software Foundation, Inc.
+# Copyright (C) 2008-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/rm/dir-no-w.sh b/tests/rm/dir-no-w.sh
index 8424d9f2e..26692eaed 100755
--- a/tests/rm/dir-no-w.sh
+++ b/tests/rm/dir-no-w.sh
@@ -2,7 +2,7 @@
 # rm (without -r) must give a diagnostic for any directory.
 # It must not prompt, even if that directory is unwritable.
 
-# Copyright (C) 2003-2022 Free Software Foundation, Inc.
+# Copyright (C) 2003-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/rm/dir-nonrecur.sh b/tests/rm/dir-nonrecur.sh
index d309828d8..31b4c708e 100755
--- a/tests/rm/dir-nonrecur.sh
+++ b/tests/rm/dir-nonrecur.sh
@@ -2,7 +2,7 @@
 # Ensure that 'rm dir' (i.e., without --recursive) gives a reasonable
 # diagnostic when failing.
 
-# Copyright (C) 2005-2022 Free Software Foundation, Inc.
+# Copyright (C) 2005-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/rm/dot-rel.sh b/tests/rm/dot-rel.sh
index 3f603b187..b145cd63c 100755
--- a/tests/rm/dot-rel.sh
+++ b/tests/rm/dot-rel.sh
@@ -2,7 +2,7 @@
 # Use rm -r to remove two non-empty dot-relative directories.
 # This would have failed between 2004-10-18 and 2004-10-21.
 
-# Copyright (C) 2004-2022 Free Software Foundation, Inc.
+# Copyright (C) 2004-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/rm/empty-immutable-skip.sh b/tests/rm/empty-immutable-skip.sh
index a4eae3c00..151db4cd4 100755
--- a/tests/rm/empty-immutable-skip.sh
+++ b/tests/rm/empty-immutable-skip.sh
@@ -2,7 +2,7 @@
 # Ensure that rm does not skip extra files after hitting an empty immutable dir.
 # Requires root access to do chattr +i, as well as an ext[23] or xfs file system
 
-# Copyright (C) 2020-2022 Free Software Foundation, Inc.
+# Copyright (C) 2020-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/rm/empty-inacc.sh b/tests/rm/empty-inacc.sh
index 5cab26620..5d6181509 100755
--- a/tests/rm/empty-inacc.sh
+++ b/tests/rm/empty-inacc.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Ensure that rm -rf removes an empty-and-inaccessible directory.
 
-# Copyright (C) 2006-2022 Free Software Foundation, Inc.
+# Copyright (C) 2006-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/rm/empty-name.pl b/tests/rm/empty-name.pl
index e31f68fbd..d818dbd69 100755
--- a/tests/rm/empty-name.pl
+++ b/tests/rm/empty-name.pl
@@ -1,7 +1,7 @@
 #!/usr/bin/perl
 # Make sure that rm -r '' fails.
 
-# Copyright (C) 1998-2022 Free Software Foundation, Inc.
+# Copyright (C) 1998-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/rm/ext3-perf.sh b/tests/rm/ext3-perf.sh
index 744298a47..73aa85e94 100755
--- a/tests/rm/ext3-perf.sh
+++ b/tests/rm/ext3-perf.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # ensure that "rm -rf DIR-with-many-entries" is not O(N^2)
 
-# Copyright (C) 2008-2022 Free Software Foundation, Inc.
+# Copyright (C) 2008-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/rm/f-1.sh b/tests/rm/f-1.sh
index 304568455..8d119f726 100755
--- a/tests/rm/f-1.sh
+++ b/tests/rm/f-1.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test "rm -f" with a nonexistent file.
 
-# Copyright (C) 1997-2022 Free Software Foundation, Inc.
+# Copyright (C) 1997-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/rm/fail-2eperm.sh b/tests/rm/fail-2eperm.sh
index dbee69f2c..9e5cdb1c1 100755
--- a/tests/rm/fail-2eperm.sh
+++ b/tests/rm/fail-2eperm.sh
@@ -2,7 +2,7 @@
 # Like fail-eperm, but the failure must be for a file encountered
 # while trying to remove the containing directory with the sticky bit set.
 
-# Copyright (C) 2003-2022 Free Software Foundation, Inc.
+# Copyright (C) 2003-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/rm/fail-eacces.sh b/tests/rm/fail-eacces.sh
index 94f36c203..d438d1786 100755
--- a/tests/rm/fail-eacces.sh
+++ b/tests/rm/fail-eacces.sh
@@ -4,7 +4,7 @@
 # With the symlink, rm from coreutils-6.9 would fail with a misleading
 # ELOOP diagnostic.
 
-# Copyright (C) 2006-2022 Free Software Foundation, Inc.
+# Copyright (C) 2006-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/rm/fail-eperm.xpl b/tests/rm/fail-eperm.xpl
index 09374e138..5511d30e9 100755
--- a/tests/rm/fail-eperm.xpl
+++ b/tests/rm/fail-eperm.xpl
@@ -2,7 +2,7 @@
 # Ensure that rm gives the expected diagnostic when failing to remove a file
 # owned by some other user in a directory with the sticky bit set.
 
-# Copyright (C) 2002-2022 Free Software Foundation, Inc.
+# Copyright (C) 2002-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/rm/hash.sh b/tests/rm/hash.sh
index ce902c909..5ff3c19d4 100755
--- a/tests/rm/hash.sh
+++ b/tests/rm/hash.sh
@@ -3,7 +3,7 @@
 # Before then, rm would fail occasionally, sometimes via
 # a failed assertion, others with a seg fault.
 
-# Copyright (C) 2000-2022 Free Software Foundation, Inc.
+# Copyright (C) 2000-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/rm/i-1.sh b/tests/rm/i-1.sh
index 00f4200b4..96fb98e33 100755
--- a/tests/rm/i-1.sh
+++ b/tests/rm/i-1.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test "rm -i".
 
-# Copyright (C) 1997-2022 Free Software Foundation, Inc.
+# Copyright (C) 1997-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/rm/i-never.sh b/tests/rm/i-never.sh
index da988a2a9..471a8f4a9 100755
--- a/tests/rm/i-never.sh
+++ b/tests/rm/i-never.sh
@@ -2,7 +2,7 @@
 # Ensure that rm --interactive=never works does not prompt, even for
 # an unwritable file.
 
-# Copyright (C) 2007-2022 Free Software Foundation, Inc.
+# Copyright (C) 2007-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/rm/i-no-r.sh b/tests/rm/i-no-r.sh
index f107b04af..89bda8ef4 100755
--- a/tests/rm/i-no-r.sh
+++ b/tests/rm/i-no-r.sh
@@ -3,7 +3,7 @@
 # recurse into directory DIR.  rm -i (without -r) must fail in that case.
 # Fixed in coreutils-4.5.2.
 
-# Copyright (C) 2002-2022 Free Software Foundation, Inc.
+# Copyright (C) 2002-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/rm/ignorable.sh b/tests/rm/ignorable.sh
index 357b94b7e..68a555f69 100755
--- a/tests/rm/ignorable.sh
+++ b/tests/rm/ignorable.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Ensure that rm -f existing-non-dir/anything exits successfully
 
-# Copyright (C) 2006-2022 Free Software Foundation, Inc.
+# Copyright (C) 2006-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/rm/inaccessible.sh b/tests/rm/inaccessible.sh
index d0f5363a0..da82fe608 100755
--- a/tests/rm/inaccessible.sh
+++ b/tests/rm/inaccessible.sh
@@ -2,7 +2,7 @@
 # Ensure that rm works even when run from a directory
 # for which the user has no access at all.
 
-# Copyright (C) 2004-2022 Free Software Foundation, Inc.
+# Copyright (C) 2004-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/rm/interactive-always.sh b/tests/rm/interactive-always.sh
index 4ac3145c1..7223b0d5f 100755
--- a/tests/rm/interactive-always.sh
+++ b/tests/rm/interactive-always.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test the --interactive[=WHEN] changes added to coreutils 6.0
 
-# Copyright (C) 2006-2022 Free Software Foundation, Inc.
+# Copyright (C) 2006-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/rm/interactive-once.sh b/tests/rm/interactive-once.sh
index 16bd4cabb..ef97e0a33 100755
--- a/tests/rm/interactive-once.sh
+++ b/tests/rm/interactive-once.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test the -I option added to coreutils 6.0
 
-# Copyright (C) 2006-2022 Free Software Foundation, Inc.
+# Copyright (C) 2006-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/rm/ir-1.sh b/tests/rm/ir-1.sh
index bc120505b..247a12bb5 100755
--- a/tests/rm/ir-1.sh
+++ b/tests/rm/ir-1.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test "rm -ir".
 
-# Copyright (C) 1997-2022 Free Software Foundation, Inc.
+# Copyright (C) 1997-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/rm/isatty.sh b/tests/rm/isatty.sh
index 0f0b66397..8bf13f0aa 100755
--- a/tests/rm/isatty.sh
+++ b/tests/rm/isatty.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Make sure 'chown 0 f; rm f' prompts before removing f.
 
-# Copyright (C) 2001-2022 Free Software Foundation, Inc.
+# Copyright (C) 2001-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/rm/many-dir-entries-vs-OOM.sh b/tests/rm/many-dir-entries-vs-OOM.sh
index c3ff97f15..5cc25ab11 100755
--- a/tests/rm/many-dir-entries-vs-OOM.sh
+++ b/tests/rm/many-dir-entries-vs-OOM.sh
@@ -2,7 +2,7 @@
 # In coreutils-8.12, rm,du,chmod, etc. would use too much memory
 # when processing a directory with many entries (as in > 100,000).
 
-# Copyright (C) 2011-2022 Free Software Foundation, Inc.
+# Copyright (C) 2011-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/rm/no-give-up.sh b/tests/rm/no-give-up.sh
index bf81914eb..f4ac7a2a9 100755
--- a/tests/rm/no-give-up.sh
+++ b/tests/rm/no-give-up.sh
@@ -2,7 +2,7 @@
 # With rm from coreutils-5.2.1 and earlier, 'rm -r' would mistakenly
 # give up too early under some conditions.
 
-# Copyright (C) 2004-2022 Free Software Foundation, Inc.
+# Copyright (C) 2004-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/rm/one-file-system.sh b/tests/rm/one-file-system.sh
index c171fabaa..5ab75bbc7 100755
--- a/tests/rm/one-file-system.sh
+++ b/tests/rm/one-file-system.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Demonstrate rm's new --one-file-system option.
 
-# Copyright (C) 2006-2022 Free Software Foundation, Inc.
+# Copyright (C) 2006-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/rm/one-file-system2.sh b/tests/rm/one-file-system2.sh
index acd520d08..4bca2f4e6 100755
--- a/tests/rm/one-file-system2.sh
+++ b/tests/rm/one-file-system2.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Verify --one-file-system does delete within a file system
 
-# Copyright (C) 2009-2022 Free Software Foundation, Inc.
+# Copyright (C) 2009-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/rm/r-1.sh b/tests/rm/r-1.sh
index 8c9cc2864..e0a8716d5 100755
--- a/tests/rm/r-1.sh
+++ b/tests/rm/r-1.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test "rm -r --verbose".
 
-# Copyright (C) 1997-2022 Free Software Foundation, Inc.
+# Copyright (C) 1997-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/rm/r-2.sh b/tests/rm/r-2.sh
index 8cd46b3a6..78040d35d 100755
--- a/tests/rm/r-2.sh
+++ b/tests/rm/r-2.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test "rm -r --verbose".
 
-# Copyright (C) 1997-2022 Free Software Foundation, Inc.
+# Copyright (C) 1997-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/rm/r-3.sh b/tests/rm/r-3.sh
index b3feb61c4..f2d4c5be2 100755
--- a/tests/rm/r-3.sh
+++ b/tests/rm/r-3.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Create and remove a directory with more than 254 files.
 
-# Copyright (C) 1997-2022 Free Software Foundation, Inc.
+# Copyright (C) 1997-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/rm/r-4.sh b/tests/rm/r-4.sh
index 94859f406..7acf52dcc 100755
--- a/tests/rm/r-4.sh
+++ b/tests/rm/r-4.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Try to remove '.' and '..' recursively.
 
-# Copyright (C) 2006-2022 Free Software Foundation, Inc.
+# Copyright (C) 2006-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/rm/r-root.sh b/tests/rm/r-root.sh
index 742d7a267..fed815f00 100755
--- a/tests/rm/r-root.sh
+++ b/tests/rm/r-root.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Try to remove '/' recursively.
 
-# Copyright (C) 2013-2022 Free Software Foundation, Inc.
+# Copyright (C) 2013-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/rm/read-only.sh b/tests/rm/read-only.sh
index adf574174..9598dfcc9 100755
--- a/tests/rm/read-only.sh
+++ b/tests/rm/read-only.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Ensure that rm -f nonexistent-file-on-read-only-fs succeeds.
 
-# Copyright (C) 2009-2022 Free Software Foundation, Inc.
+# Copyright (C) 2009-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/rm/readdir-bug.sh b/tests/rm/readdir-bug.sh
index 43fdc0737..6d07180d7 100755
--- a/tests/rm/readdir-bug.sh
+++ b/tests/rm/readdir-bug.sh
@@ -2,7 +2,7 @@
 # Exercise the Darwin/MacOS bug worked around on 2006-09-29,
 # whereby rm would fail to remove all entries in a directory.
 
-# Copyright (C) 2006-2022 Free Software Foundation, Inc.
+# Copyright (C) 2006-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/rm/rm-readdir-fail.sh b/tests/rm/rm-readdir-fail.sh
index 9dbf9380c..79ba8bee4 100755
--- a/tests/rm/rm-readdir-fail.sh
+++ b/tests/rm/rm-readdir-fail.sh
@@ -2,7 +2,7 @@
 # Test rm's behaviour when the directory cannot be read.
 # This test is skipped on systems that lack LD_PRELOAD support.
 
-# Copyright (C) 2016-2022 Free Software Foundation, Inc.
+# Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/rm/rm1.sh b/tests/rm/rm1.sh
index f37138b2f..ba231a3d2 100755
--- a/tests/rm/rm1.sh
+++ b/tests/rm/rm1.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # exercise another small part of remove.c
 
-# Copyright (C) 2002-2022 Free Software Foundation, Inc.
+# Copyright (C) 2002-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/rm/rm2.sh b/tests/rm/rm2.sh
index 23a1d06d0..dc19b9c84 100755
--- a/tests/rm/rm2.sh
+++ b/tests/rm/rm2.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # exercise another small part of remove.c
 
-# Copyright (C) 2002-2022 Free Software Foundation, Inc.
+# Copyright (C) 2002-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/rm/rm3.sh b/tests/rm/rm3.sh
index 8eb84bc50..555c92e78 100755
--- a/tests/rm/rm3.sh
+++ b/tests/rm/rm3.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # exercise another small part of remove.c
 
-# Copyright (C) 2002-2022 Free Software Foundation, Inc.
+# Copyright (C) 2002-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/rm/rm4.sh b/tests/rm/rm4.sh
index ae08c98e5..782453cc4 100755
--- a/tests/rm/rm4.sh
+++ b/tests/rm/rm4.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # ensure that 'rm dir' fails without --recursive
 
-# Copyright (C) 2002-2022 Free Software Foundation, Inc.
+# Copyright (C) 2002-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/rm/rm5.sh b/tests/rm/rm5.sh
index e7fd3ef41..2f6cb3f5c 100755
--- a/tests/rm/rm5.sh
+++ b/tests/rm/rm5.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # a basic test of rm -ri
 
-# Copyright (C) 2002-2022 Free Software Foundation, Inc.
+# Copyright (C) 2002-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/rm/sunos-1.sh b/tests/rm/sunos-1.sh
index 15e82e9fb..96fd0db9e 100755
--- a/tests/rm/sunos-1.sh
+++ b/tests/rm/sunos-1.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Make sure that rm -r '' fails.
 
-# Copyright (C) 1997-2022 Free Software Foundation, Inc.
+# Copyright (C) 1997-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/rm/unread2.sh b/tests/rm/unread2.sh
index 50e809d0e..7b5984917 100755
--- a/tests/rm/unread2.sh
+++ b/tests/rm/unread2.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # exercise one small part of remove.c
 
-# Copyright (C) 2002-2022 Free Software Foundation, Inc.
+# Copyright (C) 2002-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/rm/unread3.sh b/tests/rm/unread3.sh
index c1f283094..5c7edbd5f 100755
--- a/tests/rm/unread3.sh
+++ b/tests/rm/unread3.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Ensure that rm works even from an unreadable working directory.
 
-# Copyright (C) 2004-2022 Free Software Foundation, Inc.
+# Copyright (C) 2004-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/rm/unreadable.pl b/tests/rm/unreadable.pl
index ae796200e..57a7c2cd3 100755
--- a/tests/rm/unreadable.pl
+++ b/tests/rm/unreadable.pl
@@ -1,7 +1,7 @@
 #!/usr/bin/perl
 # Test "rm" and unreadable directories.
 
-# Copyright (C) 1998-2022 Free Software Foundation, Inc.
+# Copyright (C) 1998-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/rm/v-slash.sh b/tests/rm/v-slash.sh
index 6b8263377..c590f4eef 100755
--- a/tests/rm/v-slash.sh
+++ b/tests/rm/v-slash.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # avoid extra slashes in --verbose output
 
-# Copyright (C) 2007-2022 Free Software Foundation, Inc.
+# Copyright (C) 2007-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/rmdir/fail-perm.sh b/tests/rmdir/fail-perm.sh
index 6bc29d769..825749924 100755
--- a/tests/rmdir/fail-perm.sh
+++ b/tests/rmdir/fail-perm.sh
@@ -2,7 +2,7 @@
 # For unwritable directory 'd', 'rmdir -p d d/e/f' would emit
 # diagnostics but would not fail.  Fixed in 5.1.2.
 
-# Copyright (C) 2004-2022 Free Software Foundation, Inc.
+# Copyright (C) 2004-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/rmdir/ignore.sh b/tests/rmdir/ignore.sh
index 49cf8a70c..ab6de394f 100755
--- a/tests/rmdir/ignore.sh
+++ b/tests/rmdir/ignore.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # make sure rmdir's --ignore-fail-on-non-empty option works
 
-# Copyright (C) 1999-2022 Free Software Foundation, Inc.
+# Copyright (C) 1999-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/rmdir/symlink-errors.sh b/tests/rmdir/symlink-errors.sh
index 68f4479c1..969c80c2a 100755
--- a/tests/rmdir/symlink-errors.sh
+++ b/tests/rmdir/symlink-errors.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # make sure rmdir outputs clear errors in the presence of symlinks
 
-# Copyright (C) 2021-2022 Free Software Foundation, Inc.
+# Copyright (C) 2021-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/rmdir/t-slash.sh b/tests/rmdir/t-slash.sh
index 033fc4046..d78e75b50 100755
--- a/tests/rmdir/t-slash.sh
+++ b/tests/rmdir/t-slash.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # make sure rmdir -p works on a directory specified with a trailing slash
 
-# Copyright (C) 2002-2022 Free Software Foundation, Inc.
+# Copyright (C) 2002-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/sample-test b/tests/sample-test
index cb4ef557c..ab44eb8ca 100644
--- a/tests/sample-test
+++ b/tests/sample-test
@@ -1,7 +1,7 @@
 #!/bin/sh
 # FIXME
 
-# Copyright (C) 2022 Free Software Foundation, Inc.
+# Copyright (C) 2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/split/additional-suffix.sh b/tests/split/additional-suffix.sh
index 8cc8179e3..ff9a9b546 100755
--- a/tests/split/additional-suffix.sh
+++ b/tests/split/additional-suffix.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # show that 'split --additional-suffix=SUFFIX' works.
 
-# Copyright (C) 2012-2022 Free Software Foundation, Inc.
+# Copyright (C) 2012-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/split/b-chunk.sh b/tests/split/b-chunk.sh
index 4e7caf3eb..b3195000f 100755
--- a/tests/split/b-chunk.sh
+++ b/tests/split/b-chunk.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # test splitting into 3 chunks
 
-# Copyright (C) 2010-2022 Free Software Foundation, Inc.
+# Copyright (C) 2010-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/split/fail.sh b/tests/split/fail.sh
index 3753495f6..d0a2cbd62 100755
--- a/tests/split/fail.sh
+++ b/tests/split/fail.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # split must fail when given length/count of zero.
 
-# Copyright (C) 2003-2022 Free Software Foundation, Inc.
+# Copyright (C) 2003-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/split/filter.sh b/tests/split/filter.sh
index 66a93ac61..605721c8f 100755
--- a/tests/split/filter.sh
+++ b/tests/split/filter.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Exercise split's new --filter option.
 
-# Copyright (C) 2011-2022 Free Software Foundation, Inc.
+# Copyright (C) 2011-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/split/guard-input.sh b/tests/split/guard-input.sh
index 812b6a5c1..d0a78c381 100755
--- a/tests/split/guard-input.sh
+++ b/tests/split/guard-input.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # ensure split doesn't overwrite input with output.
 
-# Copyright (C) 2012-2022 Free Software Foundation, Inc.
+# Copyright (C) 2012-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/split/l-chunk.sh b/tests/split/l-chunk.sh
index 0e9d23696..73cd729a4 100755
--- a/tests/split/l-chunk.sh
+++ b/tests/split/l-chunk.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # test splitting into newline delineated chunks (-n l/...)
 
-# Copyright (C) 2010-2022 Free Software Foundation, Inc.
+# Copyright (C) 2010-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/split/line-bytes.sh b/tests/split/line-bytes.sh
index c15300014..a71013629 100755
--- a/tests/split/line-bytes.sh
+++ b/tests/split/line-bytes.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # test -C, --lines-bytes
 
-# Copyright (C) 2013-2022 Free Software Foundation, Inc.
+# Copyright (C) 2013-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/split/lines.sh b/tests/split/lines.sh
index 8780a2c26..16f9c69b9 100755
--- a/tests/split/lines.sh
+++ b/tests/split/lines.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # show that 'split --lines=2' works.
 
-# Copyright (C) 2002-2022 Free Software Foundation, Inc.
+# Copyright (C) 2002-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/split/numeric.sh b/tests/split/numeric.sh
index 23edd14e1..f0b08573c 100755
--- a/tests/split/numeric.sh
+++ b/tests/split/numeric.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test --{hex,numeric}-suffixes[=from]
 
-# Copyright (C) 2012-2022 Free Software Foundation, Inc.
+# Copyright (C) 2012-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/split/r-chunk.sh b/tests/split/r-chunk.sh
index a32b7eaf5..2d4a60f43 100755
--- a/tests/split/r-chunk.sh
+++ b/tests/split/r-chunk.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # test splitting into round-robin chunks
 
-# Copyright (C) 2010-2022 Free Software Foundation, Inc.
+# Copyright (C) 2010-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/split/record-sep.sh b/tests/split/record-sep.sh
index f51e8fac7..3827d15c8 100755
--- a/tests/split/record-sep.sh
+++ b/tests/split/record-sep.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # test split with custom record separators
 
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/split/suffix-auto-length.sh b/tests/split/suffix-auto-length.sh
index 3f9378b13..8bbb26f36 100755
--- a/tests/split/suffix-auto-length.sh
+++ b/tests/split/suffix-auto-length.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test the suffix auto width functionality
 
-# Copyright (C) 2012-2022 Free Software Foundation, Inc.
+# Copyright (C) 2012-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/split/suffix-length.sh b/tests/split/suffix-length.sh
index bb2f9faef..75c7bd101 100755
--- a/tests/split/suffix-length.sh
+++ b/tests/split/suffix-length.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Show that split -a works.
 
-# Copyright (C) 2002-2022 Free Software Foundation, Inc.
+# Copyright (C) 2002-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/tail-2/F-headers.sh b/tests/tail-2/F-headers.sh
index e3b5c3018..ef4b9bc8a 100755
--- a/tests/tail-2/F-headers.sh
+++ b/tests/tail-2/F-headers.sh
@@ -3,7 +3,7 @@
 # Between coreutils 7.5 and 8.23 inclusive, 'tail -F ...' would
 # not output headers for or created/renamed files in certain cases.
 
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/tail-2/F-vs-missing.sh b/tests/tail-2/F-vs-missing.sh
index 5612ffece..da4d4f798 100755
--- a/tests/tail-2/F-vs-missing.sh
+++ b/tests/tail-2/F-vs-missing.sh
@@ -3,7 +3,7 @@
 # Before coreutils-8.6, tail -F missing/file would not
 # notice any subsequent availability of the missing/file.
 
-# Copyright (C) 2010-2022 Free Software Foundation, Inc.
+# Copyright (C) 2010-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/tail-2/F-vs-rename.sh b/tests/tail-2/F-vs-rename.sh
index b0487f744..1048054fc 100755
--- a/tests/tail-2/F-vs-rename.sh
+++ b/tests/tail-2/F-vs-rename.sh
@@ -3,7 +3,7 @@
 # Between coreutils 7.5 and 8.2 inclusive, 'tail -F a b' would
 # stop tracking additions to b after 'mv a b'.
 
-# Copyright (C) 2009-2022 Free Software Foundation, Inc.
+# Copyright (C) 2009-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/tail-2/append-only.sh b/tests/tail-2/append-only.sh
index e71a3efbc..9ce855bb7 100755
--- a/tests/tail-2/append-only.sh
+++ b/tests/tail-2/append-only.sh
@@ -2,7 +2,7 @@
 # Ensure that tail -f works on an append-only file
 # Requires root access to do chattr +a, as well as an ext[23] or xfs file system
 
-# Copyright (C) 2006-2022 Free Software Foundation, Inc.
+# Copyright (C) 2006-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/tail-2/assert-2.sh b/tests/tail-2/assert-2.sh
index ea5bea6f8..4592c8caf 100755
--- a/tests/tail-2/assert-2.sh
+++ b/tests/tail-2/assert-2.sh
@@ -3,7 +3,7 @@
 # Due to a race condition in the test, the 'assert' script would get
 # the UMR on Solaris only some of the time, and not at all on Linux/GNU.
 
-# Copyright (C) 2000-2022 Free Software Foundation, Inc.
+# Copyright (C) 2000-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/tail-2/assert.sh b/tests/tail-2/assert.sh
index 246a3b1ca..dda990463 100755
--- a/tests/tail-2/assert.sh
+++ b/tests/tail-2/assert.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test for assertion failure in "test".
 
-# Copyright (C) 1999-2022 Free Software Foundation, Inc.
+# Copyright (C) 1999-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/tail-2/big-4gb.sh b/tests/tail-2/big-4gb.sh
index a6641d97c..2e8379bb4 100755
--- a/tests/tail-2/big-4gb.sh
+++ b/tests/tail-2/big-4gb.sh
@@ -2,7 +2,7 @@
 # Demonstrate a bug in 'tail -cN' when operating on files of size 4G and larger
 # Fixed in coreutils-4.5.2.
 
-# Copyright (C) 2002-2022 Free Software Foundation, Inc.
+# Copyright (C) 2002-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/tail-2/descriptor-vs-rename.sh b/tests/tail-2/descriptor-vs-rename.sh
index 4ed15fd12..f99a4affa 100755
--- a/tests/tail-2/descriptor-vs-rename.sh
+++ b/tests/tail-2/descriptor-vs-rename.sh
@@ -3,7 +3,7 @@
 # Between coreutils 7.5 and 8.23 inclusive, 'tail -f a' would
 # stop tracking additions to b after 'mv a b'.
 
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/tail-2/end-of-device.sh b/tests/tail-2/end-of-device.sh
index 59d7f7f29..8c0da1dc1 100755
--- a/tests/tail-2/end-of-device.sh
+++ b/tests/tail-2/end-of-device.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Ensure that tail seeks to the end of a device
 
-# Copyright (C) 2017-2022 Free Software Foundation, Inc.
+# Copyright (C) 2017-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/tail-2/flush-initial.sh b/tests/tail-2/flush-initial.sh
index fb9e79b05..00ca5356c 100755
--- a/tests/tail-2/flush-initial.sh
+++ b/tests/tail-2/flush-initial.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # inotify-based tail -f didn't flush its initial output before blocking
 
-# Copyright (C) 2009-2022 Free Software Foundation, Inc.
+# Copyright (C) 2009-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/tail-2/follow-name.sh b/tests/tail-2/follow-name.sh
index 3ad7ce73b..a414b69c5 100755
--- a/tests/tail-2/follow-name.sh
+++ b/tests/tail-2/follow-name.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # ensure that --follow=name does not imply --retry
 
-# Copyright (C) 2011-2022 Free Software Foundation, Inc.
+# Copyright (C) 2011-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/tail-2/follow-stdin.sh b/tests/tail-2/follow-stdin.sh
index 7d3ff5084..0c415d3d2 100755
--- a/tests/tail-2/follow-stdin.sh
+++ b/tests/tail-2/follow-stdin.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test tail -f -
 
-# Copyright (C) 2009-2022 Free Software Foundation, Inc.
+# Copyright (C) 2009-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/tail-2/inotify-dir-recreate.sh b/tests/tail-2/inotify-dir-recreate.sh
index 1e743c53d..3d2ce996a 100755
--- a/tests/tail-2/inotify-dir-recreate.sh
+++ b/tests/tail-2/inotify-dir-recreate.sh
@@ -3,7 +3,7 @@
 # of the watched file was removed and recreated.
 # (...instead of getting stuck forever)
 
-# Copyright (C) 2017-2022 Free Software Foundation, Inc.
+# Copyright (C) 2017-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/tail-2/inotify-hash-abuse.sh b/tests/tail-2/inotify-hash-abuse.sh
index 88fc257a6..26af820bd 100755
--- a/tests/tail-2/inotify-hash-abuse.sh
+++ b/tests/tail-2/inotify-hash-abuse.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Exercise an abort-inducing flaw in inotify-enabled tail -F.
 
-# Copyright (C) 2009-2022 Free Software Foundation, Inc.
+# Copyright (C) 2009-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/tail-2/inotify-hash-abuse2.sh b/tests/tail-2/inotify-hash-abuse2.sh
index a7efab4b6..ba97d3b94 100755
--- a/tests/tail-2/inotify-hash-abuse2.sh
+++ b/tests/tail-2/inotify-hash-abuse2.sh
@@ -2,7 +2,7 @@
 # Exercise an abort-inducing flaw in inotify-enabled tail -F.
 # Like inotify-hash-abuse, but without a hard-coded "9".
 
-# Copyright (C) 2009-2022 Free Software Foundation, Inc.
+# Copyright (C) 2009-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/tail-2/inotify-only-regular.sh b/tests/tail-2/inotify-only-regular.sh
index 696ad60d8..2ecf66baa 100755
--- a/tests/tail-2/inotify-only-regular.sh
+++ b/tests/tail-2/inotify-only-regular.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # ensure that tail -f only uses inotify for regular files or fifos
 
-# Copyright (C) 2017-2022 Free Software Foundation, Inc.
+# Copyright (C) 2017-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/tail-2/inotify-race.sh b/tests/tail-2/inotify-race.sh
index 53a78bc6d..c722fb9fa 100755
--- a/tests/tail-2/inotify-race.sh
+++ b/tests/tail-2/inotify-race.sh
@@ -5,7 +5,7 @@
 # indefinitely if no *other* data is appended, but it would be printed as
 # soon as any additional appended data is detected.
 
-# Copyright (C) 2009-2022 Free Software Foundation, Inc.
+# Copyright (C) 2009-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/tail-2/inotify-race2.sh b/tests/tail-2/inotify-race2.sh
index 2c0dfe223..89b02c6cf 100755
--- a/tests/tail-2/inotify-race2.sh
+++ b/tests/tail-2/inotify-race2.sh
@@ -4,7 +4,7 @@
 # are established in tail_forever_inotify.  That new file would be ignored
 # indefinitely.
 
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/tail-2/inotify-rotate-resources.sh b/tests/tail-2/inotify-rotate-resources.sh
index 3dc69c784..543529e85 100755
--- a/tests/tail-2/inotify-rotate-resources.sh
+++ b/tests/tail-2/inotify-rotate-resources.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # ensure that tail -F doesn't leak inotify resources
 
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/tail-2/inotify-rotate.sh b/tests/tail-2/inotify-rotate.sh
index 34906be77..55338b51c 100755
--- a/tests/tail-2/inotify-rotate.sh
+++ b/tests/tail-2/inotify-rotate.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # ensure that tail -F handles rotation
 
-# Copyright (C) 2009-2022 Free Software Foundation, Inc.
+# Copyright (C) 2009-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/tail-2/overlay-headers.sh b/tests/tail-2/overlay-headers.sh
index ddd7d6a49..59f6e1e7b 100755
--- a/tests/tail-2/overlay-headers.sh
+++ b/tests/tail-2/overlay-headers.sh
@@ -2,7 +2,7 @@
 # inotify-based tail would output redundant headers for
 # overlapping inotify events while it was suspended
 
-# Copyright (C) 2017-2022 Free Software Foundation, Inc.
+# Copyright (C) 2017-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/tail-2/pid.sh b/tests/tail-2/pid.sh
index 6e7936e41..f931b2c70 100755
--- a/tests/tail-2/pid.sh
+++ b/tests/tail-2/pid.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test the --pid option of tail.
 
-# Copyright (C) 2003-2022 Free Software Foundation, Inc.
+# Copyright (C) 2003-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/tail-2/pipe-f.sh b/tests/tail-2/pipe-f.sh
index 4ca43a3ea..61812d1aa 100755
--- a/tests/tail-2/pipe-f.sh
+++ b/tests/tail-2/pipe-f.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # ensure that tail -f doesn't hang in various cases
 
-# Copyright (C) 2009-2022 Free Software Foundation, Inc.
+# Copyright (C) 2009-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/tail-2/pipe-f2.sh b/tests/tail-2/pipe-f2.sh
index 7eae3202e..edbe3ff00 100755
--- a/tests/tail-2/pipe-f2.sh
+++ b/tests/tail-2/pipe-f2.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Ensure that "tail -f fifo" tails indefinitely.
 
-# Copyright (C) 2009-2022 Free Software Foundation, Inc.
+# Copyright (C) 2009-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/tail-2/proc-ksyms.sh b/tests/tail-2/proc-ksyms.sh
index 1d3338b74..5f9b2391e 100755
--- a/tests/tail-2/proc-ksyms.sh
+++ b/tests/tail-2/proc-ksyms.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Prior to textutils-2.0.17, 'tail /proc/ksyms' would segfault on Linux.
 
-# Copyright (C) 2001-2022 Free Software Foundation, Inc.
+# Copyright (C) 2001-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/tail-2/retry.sh b/tests/tail-2/retry.sh
index 255a06280..cb75e0580 100755
--- a/tests/tail-2/retry.sh
+++ b/tests/tail-2/retry.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Exercise tail's behavior regarding missing files with/without --retry.
 
-# Copyright (C) 2013-2022 Free Software Foundation, Inc.
+# Copyright (C) 2013-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/tail-2/start-middle.sh b/tests/tail-2/start-middle.sh
index ee58e2194..a64bb2d25 100755
--- a/tests/tail-2/start-middle.sh
+++ b/tests/tail-2/start-middle.sh
@@ -2,7 +2,7 @@
 # Verify that tail works even when it's reading from a file
 # that is not at its beginning.  Based on a report from John Roll.
 
-# Copyright (C) 2001-2022 Free Software Foundation, Inc.
+# Copyright (C) 2001-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/tail-2/symlink.sh b/tests/tail-2/symlink.sh
index 765d6dbd6..97184d41a 100755
--- a/tests/tail-2/symlink.sh
+++ b/tests/tail-2/symlink.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Ensure tail tracks symlinks properly.
 
-# Copyright (C) 2013-2022 Free Software Foundation, Inc.
+# Copyright (C) 2013-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/tail-2/tail-c.sh b/tests/tail-2/tail-c.sh
index 37f9e1185..cd9290910 100755
--- a/tests/tail-2/tail-c.sh
+++ b/tests/tail-2/tail-c.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # exercise tail -c
 
-# Copyright 2014-2022 Free Software Foundation, Inc.
+# Copyright 2014-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/tail-2/tail-n0f.sh b/tests/tail-2/tail-n0f.sh
index b7850766b..a3ce5f83b 100755
--- a/tests/tail-2/tail-n0f.sh
+++ b/tests/tail-2/tail-n0f.sh
@@ -2,7 +2,7 @@
 # Make sure that 'tail -n0 -f' and 'tail -c0 -f' sleep
 # rather than doing what amounted to a busy-wait.
 
-# Copyright (C) 2003-2022 Free Software Foundation, Inc.
+# Copyright (C) 2003-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/tail-2/truncate.sh b/tests/tail-2/truncate.sh
index 4dbea9eaf..7c9fbfc74 100755
--- a/tests/tail-2/truncate.sh
+++ b/tests/tail-2/truncate.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Ensure all logs are output upon file truncation
 
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/tail-2/wait.sh b/tests/tail-2/wait.sh
index e9fc1fa5e..12b906bf4 100755
--- a/tests/tail-2/wait.sh
+++ b/tests/tail-2/wait.sh
@@ -2,7 +2,7 @@
 # Make sure that 'tail -f' returns immediately if a file doesn't exist
 # while 'tail -F' waits for it to appear.
 
-# Copyright (C) 2003-2022 Free Software Foundation, Inc.
+# Copyright (C) 2003-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/touch/60-seconds.sh b/tests/touch/60-seconds.sh
index 8b30a8eb9..9c5985665 100755
--- a/tests/touch/60-seconds.sh
+++ b/tests/touch/60-seconds.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # touch -t would mistakenly reject a time specifying "60" seconds
 
-# Copyright (C) 2009-2022 Free Software Foundation, Inc.
+# Copyright (C) 2009-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/touch/dangling-symlink.sh b/tests/touch/dangling-symlink.sh
index 2b34dd494..0904e3ea0 100755
--- a/tests/touch/dangling-symlink.sh
+++ b/tests/touch/dangling-symlink.sh
@@ -2,7 +2,7 @@
 # Make sure touch can create a file through a dangling symlink.
 # This was broken in the 4.0[e-i] test releases.
 
-# Copyright (C) 1999-2022 Free Software Foundation, Inc.
+# Copyright (C) 1999-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/touch/empty-file.sh b/tests/touch/empty-file.sh
index 908f268e3..6946ae304 100755
--- a/tests/touch/empty-file.sh
+++ b/tests/touch/empty-file.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Make sure touch can set the mtime on an empty file.
 
-# Copyright (C) 1998-2022 Free Software Foundation, Inc.
+# Copyright (C) 1998-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/touch/fail-diag.sh b/tests/touch/fail-diag.sh
index 767844081..73d6e39d8 100755
--- a/tests/touch/fail-diag.sh
+++ b/tests/touch/fail-diag.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # make sure touch gives reasonable diagnostics
 
-# Copyright (C) 2001-2022 Free Software Foundation, Inc.
+# Copyright (C) 2001-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/touch/fifo.sh b/tests/touch/fifo.sh
index 0129c3ed2..f05f5e812 100755
--- a/tests/touch/fifo.sh
+++ b/tests/touch/fifo.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Make sure touch works on fifos without hanging.
 
-# Copyright (C) 2000-2022 Free Software Foundation, Inc.
+# Copyright (C) 2000-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/touch/no-create-missing.sh b/tests/touch/no-create-missing.sh
index bc4bddf50..0351b9d5d 100755
--- a/tests/touch/no-create-missing.sh
+++ b/tests/touch/no-create-missing.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Ensure that touch -c no-such-file no longer fails (it did in 4.1.8).
 
-# Copyright (C) 2002-2022 Free Software Foundation, Inc.
+# Copyright (C) 2002-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/touch/no-dereference.sh b/tests/touch/no-dereference.sh
index 5249d62e4..adbf1f7a0 100755
--- a/tests/touch/no-dereference.sh
+++ b/tests/touch/no-dereference.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Ensure that touch -h works.
 
-# Copyright (C) 2009-2022 Free Software Foundation, Inc.
+# Copyright (C) 2009-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/touch/no-rights.sh b/tests/touch/no-rights.sh
index 3cf387df2..8dec177cd 100755
--- a/tests/touch/no-rights.sh
+++ b/tests/touch/no-rights.sh
@@ -2,7 +2,7 @@
 # Make sure touch can update the times on a file that is neither
 # readable nor writable.
 
-# Copyright (C) 1999-2022 Free Software Foundation, Inc.
+# Copyright (C) 1999-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/touch/not-owner.sh b/tests/touch/not-owner.sh
index fddf4fc38..c9428de3e 100755
--- a/tests/touch/not-owner.sh
+++ b/tests/touch/not-owner.sh
@@ -2,7 +2,7 @@
 # Make sure that touch gives reasonable diagnostics when applied
 # to an unwritable directory owned by some other user.
 
-# Copyright (C) 2003-2022 Free Software Foundation, Inc.
+# Copyright (C) 2003-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/touch/now-owned-by-other.sh b/tests/touch/now-owned-by-other.sh
index 6d307a2ae..ad4901c7f 100755
--- a/tests/touch/now-owned-by-other.sh
+++ b/tests/touch/now-owned-by-other.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Demonstrate that "touch -d now writable-but-owned-by-other" works.
 
-# Copyright (C) 2008-2022 Free Software Foundation, Inc.
+# Copyright (C) 2008-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/touch/obsolescent.sh b/tests/touch/obsolescent.sh
index 86de2032b..76d55aa28 100755
--- a/tests/touch/obsolescent.sh
+++ b/tests/touch/obsolescent.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test touch with obsolescent 8- or 10-digit timestamps.
 
-# Copyright (C) 2000-2022 Free Software Foundation, Inc.
+# Copyright (C) 2000-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/touch/read-only.sh b/tests/touch/read-only.sh
index 88b23ff52..18e2c6a24 100755
--- a/tests/touch/read-only.sh
+++ b/tests/touch/read-only.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # ensure that touch can operate on read-only files
 
-# Copyright (C) 2005-2022 Free Software Foundation, Inc.
+# Copyright (C) 2005-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/touch/relative.sh b/tests/touch/relative.sh
index 6643a1a91..03ce8de99 100755
--- a/tests/touch/relative.sh
+++ b/tests/touch/relative.sh
@@ -2,7 +2,7 @@
 # Demonstrate using a combination of --reference and --date to
 # set the time of a file back by an arbitrary amount.
 
-# Copyright (C) 2004-2022 Free Software Foundation, Inc.
+# Copyright (C) 2004-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/touch/trailing-slash.sh b/tests/touch/trailing-slash.sh
index 9f4b29e37..0c48f3de0 100755
--- a/tests/touch/trailing-slash.sh
+++ b/tests/touch/trailing-slash.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Ensure that touch honors trailing slash.
 
-# Copyright (C) 2009-2022 Free Software Foundation, Inc.
+# Copyright (C) 2009-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by