send usage to stderr on error paths

2026-08-22 06:17:51 +02:00
parent acac5b685b
commit 4e24ee218c
1 changed files with 7 additions and 7 deletions
@@ -221,7 +221,7 @@ while (( $# > 0 )); do
      -c|--config)
        cfgfile=$1
        shift
-        [ -z "$cfgfile" ] && usage && exit 255
+        [ -z "$cfgfile" ] && echo "Error: missing argument for $opt" >&2 && usage >&2 && exit 255
      ;;
      -h|--help)
        usage
@@ -232,8 +232,8 @@ while (( $# > 0 )); do
      ;;
      -*)
        echo "Error: invalid option: $opt" >&2
-        echo
-        usage
+        echo >&2
+        usage >&2
        exit 255
      ;;
      *)
@@ -247,14 +247,14 @@ while (( $# > 0 )); do
      ;;
      -*)
        echo "Error: invalid option: $opt" >&2
-        echo
-        usage
+        echo >&2
+        usage >&2
        exit 255
      ;;
      *)
        echo "Error: invalid argument: $opt" >&2
-        echo
-        usage
+        echo >&2
+        usage >&2
        exit 255
      ;;
    esac