Adding upstream version 2.38.1.upstream/2.38.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 75 insertions, 0 deletions

diff --git a/misc-utils/getopt-example.bash b/misc-utils/getopt-example.bash
new file mode 100644
index 0000000..0870882
--- /dev/null
+++ b/misc-utils/getopt-example.bash
@@ -0,0 +1,75 @@
+#!/bin/bash
+
+# A small example script for using the getopt(1) program.
+# This script will only work with bash(1).
+# A similar script using the tcsh(1) language can be found
+# as getopt-example.tcsh.
+
+# Example input and output (from the bash prompt):
+#
+# ./getopt-example.bash -a par1 'another arg' --c-long 'wow!*\?' -cmore -b " very long "
+# Option a
+# Option c, no argument
+# Option c, argument 'more'
+# Option b, argument ' very long '
+# Remaining arguments:
+# --> 'par1'
+# --> 'another arg'
+# --> 'wow!*\?'
+
+# Note that we use "$@" to let each command-line parameter expand to a
+# separate word. The quotes around "$@" are essential!
+# We need TEMP as the 'eval set --' would nuke the return value of getopt.
+TEMP=$(getopt -o 'ab:c::' --long 'a-long,b-long:,c-long::' -n 'example.bash' -- "$@")
+
+if [ $? -ne 0 ]; then
+	echo 'Terminating...' >&2
+	exit 1
+fi
+
+# Note the quotes around "$TEMP": they are essential!
+eval set -- "$TEMP"
+unset TEMP
+
+while true; do
+	case "$1" in
+		'-a'|'--a-long')
+			echo 'Option a'
+			shift
+			continue
+		;;
+		'-b'|'--b-long')
+			echo "Option b, argument '$2'"
+			shift 2
+			continue
+		;;
+		'-c'|'--c-long')
+			# c has an optional argument. As we are in quoted mode,
+			# an empty parameter will be generated if its optional
+			# argument is not found.
+			case "$2" in
+				'')
+					echo 'Option c, no argument'
+				;;
+				*)
+					echo "Option c, argument '$2'"
+				;;
+			esac
+			shift 2
+			continue
+		;;
+		'--')
+			shift
+			break
+		;;
+		*)
+			echo 'Internal error!' >&2
+			exit 1
+		;;
+	esac
+done
+
+echo 'Remaining arguments:'
+for arg; do
+	echo "--> '$arg'"
+done