cwall

#!/usr/bin/env bash
# =================================================
# CREATED: Seg 30/Dez/2013 hs 15:07
# LAST CHANGE: 2013 Dez 30 15:11:22
# THIS SCRIPT AIMS: change wallpaper in gnome-shell
# AUTHOR: Sérgio Luiz Araújo Silva
# SITE: http://vivaotux.blogspot.com
# TWITTER: @voyeg3r
# SKYPE: sergioaraujosilva
# =================================================
# source: http://superuser.com/questions/298050/periodically-changing-wallpaper-under-gnome-3

# CHANGE THE FOLDERS NAME AND USER!
# to run this script automaticaly in gnome-shell create
# this file in ~/.config/autostart/cwall.desktop

# ------- cwall.desktop file ----
# [Desktop Entry]
# Type=Application
# Exec=/home/sergio/bin/cwall
# Hidden=false
# NoDisplay=false
# X-GNOME-Autostart-enabled=true
# Name[pt_BR]=changewallpaper
# Name=changewallpaper
# Comment[pt_BR]=change wallpaper periodicaly
# Comment=change wallpaper periodicaly
# ---------------------------------------------

WP_DIR=/home/sergio/Pictures/wallpapers

cd $WP_DIR
while [ 1 ]
  do
set -- *
  WP=`ls -1 "$WP_DIR" | shuf -n1`
  gsettings set org.gnome.desktop.background picture-uri "file://$WP_DIR/${WP}"

  # time mesured in seconds, 300 means 5 minutes
  sleep 300
done