added usage

2015-08-03 20:11:36 +02:00 · 2015-08-03 20:11:36 +02:00 · f82755bf20
parent d45845a01d
commit f82755bf20
1 changed files with 1 additions and 0 deletions
--- a/projectionscreen.sh
+++ b/projectionscreen.sh
@ -28,4 +28,5 @@ case "$1" in
      ;;
  stop) rollstop
      ;;
+  *) echo "usage: $0 {up|down|stop}"
 esac