From 4240b99f84de34eab8f0ff4304b8d295762bc60f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Nicol=C3=A1s=20Ortega=20Froysa?= <nicolas@ortegas.org>
Date: Mon, 2 Mar 2026 15:38:41 +0100
Subject: [PATCH] Add help information.

---
 countdown.sh | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/countdown.sh b/countdown.sh
index ffea337..ce468b4 100755
--- a/countdown.sh
+++ b/countdown.sh
@@ -24,9 +24,18 @@
 
 set -euo pipefail
 
-if [ $? -gt 1 ]
+if [ $# -gt 1 ]
+then
+	echo "Too many arguments"
+	echo "Usage: $0 [COUNT]"
+	exit 1
+elif [ $# -eq 1 ] && [ "$1" = "-h" ]
 then
 	echo "Usage: $0 [COUNT]"
+	exit 0
+elif [ $# -eq 1 ] && [ "$1" -le 0 ]
+then
+	echo "COUNT must be a positive integer"
 	exit 1
 fi