From f82755bf200e13bee970855cb0303bf1dcd1c053 Mon Sep 17 00:00:00 2001
From: Level2 DoorBuzz <sysops@syn2cat.lu>
Date: Mon, 3 Aug 2015 20:11:36 +0200
Subject: [PATCH] added usage

---
 projectionscreen.sh | 1 +
 1 file changed, 1 insertion(+)

diff --git a/projectionscreen.sh b/projectionscreen.sh
index 9f7c3bc..acd9b56 100755
--- a/projectionscreen.sh
+++ b/projectionscreen.sh
@@ -28,4 +28,5 @@ case "$1" in
       ;;
   stop) rollstop
       ;;
+  *) echo "usage: $0 {up|down|stop}"
 esac