#!/bin/bash
set -e
+usage () { cat <<END
+
+usage: ./notify senderfile recipientsfile 'message'
+
+recipientsfile: see test-recipients for an example
+
+senderinfo: file containing
+ email YOUREMAILADDRESS@EXAMPLE.COM
+ name YOUR NAME
+
+END
+}
case "$#.$1" in
3.[^-]*) ;;
-*) echo >&2 "usage: ./notify senderfile recipientsfile 'message'"
- exit 1 ;;
+*) usage >&2; exit 1 ;;
esac
senderinfo="$1"