Script to logoff KDE/Gnome desktop user session; you can use it from command line or from desktop via Lanucher

#!/bin/bash
# Script to logoff KDE/Gnome user session. 
# With proper permission via sudo it is possible that rest of the users 
# can use the same script. You can create Launcher to use this script 
# from Linux desktop. Tested on Debian Linux 3.x, but it should work with
# other Linux distros and FreeBSD
# -----------------------------------------------
# Copyright (c) 2005 nixCraft project <http://cyberciti.biz/fb/>
# This script is licensed under GNU GPL version 2.0 or above
# -------------------------------------------------------------------------
# This script is part of nixCraft shell script collection (NSSC)
# Visit http://bash.cyberciti.biz/ for more information.
# -------------------------------------------------------------------------
 
# Bins, adjust them as per your UNIX/Linux/BSD system (default is Debian)
 
PS="/bin/ps"
AWK="/usr/bin/awk"
GREP="/bin/grep"
XARGS="/usr/bin/xargs"
KILL="/bin/kill"
 
# Send HUP signal to X server :)
$PS aux | $GREP X | $GREP -v "grep" | $AWK '{ print $2}' | $XARGS $KILL -HUP $1