Change the gnome background intervally

walpaper-gnome

#!/bin/sh
shopt -s nullglob
cd ~/Wallpaper
while true; do
    files=()
    for i in *.jpg *.png; do
        [[ -f $i ]] && files+=("$i")
    done
    range=${#files[@]}

    ((range)) && gsettings set org.gnome.desktop.background picture-uri "file:///home/pan/Wallpaper/${files[RANDOM % range]}"

    sleep 5m
done