Help message

2013-05-21 21:28:14 +01:00 · 2013-05-21 21:28:14 +01:00 · 57a2f9e940
parent edca668e4d
commit 57a2f9e940
2 changed files with 15 additions and 2 deletions
--- a/16
+++ b/16
@ -23,8 +23,20 @@

 set -e

-if [ -z "$1" ]; then
-	echo "Usage: $0 <file>" >&2
+usage()
+{
+	cat <<END
+bpm-graph (C) Copyright 2013 Mark Hills <mark@xwax.org>
+
+Usage: bpm-graph <file>
+Display tempo analysis data
+
+See the bpm-graph(1) man page for more information.
+END
+}
+
+if [ -z "$1" ] || [ "$1" = "-h" ]; then
+	usage >&2
 	exit 1
 fi

--- a/1
+++ b/1
@ -37,6 +37,7 @@ Tag an audio file with tempo (in beats-per-minute, BPM)
  -x   Maximum detected BPM
  -h   Display this help message and exit

+See the bpm-tag(1) man page for more information and examples.
 END
 }