Help message

bpm-graph

@@ -23,8 +23,20 @@
 
 set -e
 
-if [ -z "$1" ]; then
+usage()
-	echo "Usage: $0 <file>" >&2
+{
+	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
 

bpm-tag

@@ -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
 }