Gnome Change Background [Wallch]

gistfile1.sh

#!/bin/bash
###########################################################################
#	Nautilus script for Wallch
#	This script changes desktop wallpaper via command "wallch --next"
#	
#	Usage:
#	Move the script under /home/$USER/.local/share/nautilus/scripts/
#	Set executable permission for script. chmod +x scriptname
#	
#	This Program Licensed and Distributed under the terms of GPLv3
#	See GPLv3 Details <http://www.gnu.org/licenses/>
#
#	Creation Date May 26 2012
#	Created by Ugur
#	Revision Date Apr 07 2014
#	Revised by Ugur
###########################################################################

if [ "$NAUTILUS_SCRIPT_CURRENT_URI" == "file://$HOME/Desktop" ]

then
#	notify-send "Changing Background"
	eval "wallch --next"
else
	notify-send "Run Only On Desktop"
fi

exit 0