rc.d: print usage if not enough argument

Signed-off-by: Sebastien Luttringer <seblu@seblu.net>

1 files changed, 2 insertions, 0 deletions

diff --git a/rc.d b/rc.d
index 3c7fcb9..9aa5a65 100755
--- a/rc.d
+++ b/rc.d
@@ -42,6 +42,8 @@ case $1 in
 		done
 		;;
 	*)
+		# check min args count
+		(( $# < 2 )) && usage
 		action=$1
 		shift
 		# set same environment variables as init