#!/bin/bash
if [ -z ${1} ] ; then
	printf "This script is for passing short messages to other users on the server, and yes, the \" is important\n"
	printf "Usage:\n"
	printf "${0} USER \"MESSAGE\"\n"
	exit 1
fi

if [ -z ${2} ] ; then
	printf "This script is for passing short messages to other users on the server, and yes, the \" is important\n"
	printf "Usage:\n"
	printf "${0} USER \"MESSAGE\"\n"
	exit 2
fi

getent passwd ${1} >/dev/null 2>&1
if [ $? -ne 0 ] ; then
	printf "ERROR: ${1} is not a valid user\n"
	exit 3
fi

echo "${USER} says: $2" to /srv/ltsp/msg/${1}.fifo 
echo "${USER} says: $2" >> /srv/ltsp/msg/${1}.fifo