sbs

commit 4fb81b9cc7e4aa06565f3f120ff399d518081fe4
parent e5b24b78d3561ac9c48b1f3d6598e0d43dcca8ea
Author: Jake Bauer <jbauer@paritybit.ca>
Date:   Tue, 22 Feb 2022 14:58:51 -0500

Add helptext printout

Diffstat:
M
sbs
 | 
11
++++++++---

1 file changed, 8 insertions(+), 3 deletions(-)
diff --git a/sbs b/sbs
@@ -5,14 +5,19 @@
 # Copyright (C) 2022  Jake Bauer
 # Licensed under the terms of the ISC License, see LICENSE for details.
 
-set -o errexit
-set -o nounset
-
 if [ ! -x "$(command -v lowdown)" ]; then
 	echo "The program 'lowdown' is needed but was not found."
 	exit 1
 fi
 
+if [ -z "$1" ] || [ "$1" = "help" ] || [ "$1" = -h ] || [ "$1" = "--help" ]; then
+	echo "Usage: sbs <command> [FILE ...]"
+	exit 0
+fi
+
+set -o errexit
+set -o nounset
+
 # Note: The script does not run measurably faster if files are written to using
 # one versus many printfs. Therefore, I use many printf statements to ease
 # reading, understanding, and modification of the code.