From b4255008b158e76fe595ec7d3021121b9d2257dd Mon Sep 17 00:00:00 2001
From: Juan RP <xtraeme@gmail.com>
Date: Tue, 5 Aug 2014 15:37:32 +0200
Subject: shutdown: if no args print usage().

---
 shutdown.sh | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/shutdown.sh b/shutdown.sh
index 20fd707..0cf5c24 100755
--- a/shutdown.sh
+++ b/shutdown.sh
@@ -5,6 +5,10 @@ single() {
   runsvchdir single
 }
 
+usage() {
+  echo "Usage: shutdown [-fF] [-kchPr] time [warning message]" >/dev/stderr; exit 1
+}
+
 action=single
 
 while getopts akrhPHfFnct: opt; do
@@ -17,12 +21,14 @@ while getopts akrhPHfFnct: opt; do
     c) action=cancel;;
     h|P) action=halt;;
     r) action=reboot;;
-    [?]) echo "Usage: shutdown [-fF] [-kchPr] time [warning message]" >/dev/stderr; exit 1;;
+    [?]) usage;;
   esac
 done
 shift $(expr $OPTIND - 1)
 
-[ -n "$1" ] && time=$1 && shift
+[ $# -eq 0 ] && usage
+
+time=$1; shift
 message="${*:-system is going down}"
 
 if [ "$action" = "cancel" ]; then
-- 
cgit 1.4.1