#!/bin/sh LUA=lua echo "Starting client and wait for 5 secs." $LUA client.lua & pids="$pids $!" trap "kill $pids > /dev/null 2> /dev/null" 0 sleep 5 echo "Starting server and wait for 3 sec." $LUA server.lua & pids="$pids $!" trap "kill $pids > /dev/null 2> /dev/null" 0 sleep 3 echo "Demo finished."