fix the usage text for several commands

1 files changed, 15 insertions, 2 deletions

diff --git a/pbs-plumb-config b/pbs-plumb-config
index bbb733f..d885256 100755
--- a/pbs-plumb-config
+++ b/pbs-plumb-config
@@ -1,5 +1,7 @@
 #!/bin/bash
 
+. pbs-plumb-shlib
+
 ##
 # Usage: list FILE
 # stdout: A newline-separated list of settings in FILE
@@ -21,8 +23,19 @@ get() {
 	git config --file "$file" -z --get "$setting"
 }
 
+usage() {
+	echo "Usage: ${0##*/} COMMAND [COMMAND-ARGUMENTS]"
+	echo "Work with /etc/libretools.d/pbs-convert.conf"
+	echo
+	echo "Commands:"
+	echo "  list          List the variables set in the file"
+	echo "  get VARNAME   Get the value of VARNAME"
+}
+
 main() {
-	[[ $# < 1 ]] && { usage; return 1; }
+	in_array '-h' "$@" && { usage; return 0; }
+	[[ $# < 1 ]] && { usage >&2; return 1; }
+
 	local cmd=$1
 	shift
 
@@ -35,7 +48,7 @@ main() {
 			get "$file" "$@"
 			return $?;;
 		*)
-			usage
+			usage >&2
 			return 1;;
 	esac
 }