argv check

1 files changed, 7 insertions, 1 deletions

diff --git a/lock b/lock
index b4b285d..b0ba75f 100755
--- a/lock
+++ b/lock
@@ -11,4 +11,10 @@ lock() {
 
 }
 
-lock $1
+if [[ "$#" -eq "1" ]]; then
+	lock $1
+else
+	echo "please supply one argument: the lock folder"
+	exit 1
+fi
+