better example file

more verbose
show all sections
allow custom ini file

scripts/example.sh

@@ -1,25 +1,34 @@
 #!/bin/bash
 
+TEST_FILE="${1:-file.ini}"
+
 source ../bash-ini-parser
 
-TEST_FILE="file.ini"
-# parse the config file called 'file.ini'
-cfg_parser "$TEST_FILE"
+echo show example file
+echo
+cat $TEST_FILE
+
+echo parsing $TEST_FILE
+cfg_parser "$TEST_FILE"
+echo
 
-# show parsed ini file
 echo show file parsed
 cfg_writer
 echo
 
-echo show some results
-# enable section called 'sec2' (in the file [sec2]) for reading
+echo show some results:
+
+echo
+echo enable section \'sec2\'
 cfg.section.sec2
 
-# read the content of the variable called 'var2' (in the file
-# var2=XXX). If your var2 is an array, then you can use
-# ${var[index]}
 echo "var2 value is \"$var2\""
 echo "var5[1] value is \"${var5[1]}"\"
 echo "var5[*] value is \"${var5[*]}"\"
 echo "var4 value is \"$var4"\"
 
+echo
+echo enable section \'sec1\'
+cfg.section.sec1
+
+echo "var2 value is \"$var2\""