Add config os.shellFunctionsFile

pkg/commands/oscommands/os_default_platform.go

@@ -4,15 +4,33 @@
 package oscommands
 
 import (
+	"os"
 	"runtime"
+	"strings"
 )
 
 func GetPlatform() *Platform {
+	shell := getUserShell()
+
+	prefixForShellFunctionsFile := ""
+	if strings.HasSuffix(shell, "bash") {
+		prefixForShellFunctionsFile = "shopt -s expand_aliases\n"
+	}
+
 	return &Platform{
-		OS:              runtime.GOOS,
-		Shell:           "bash",
-		ShellArg:        "-c",
-		OpenCommand:     "open {{filename}}",
-		OpenLinkCommand: "open {{link}}",
+		OS:                          runtime.GOOS,
+		Shell:                       shell,
+		ShellArg:                    "-c",
+		PrefixForShellFunctionsFile: prefixForShellFunctionsFile,
+		OpenCommand:                 "open {{filename}}",
+		OpenLinkCommand:             "open {{link}}",
 	}
 }
+
+func getUserShell() string {
+	if shell := os.Getenv("SHELL"); shell != "" {
+		return shell
+	}
+
+	return "bash"
+}