autowallpaper.sh

#/bin/bash

# Paths
home_path="/home/user"
wallpapers_path="$home_path/Wallpapers"

# Test Internet Connection
wget -q --spider http://google.com

if [ $? -eq 0 ]; then
  echo "Download to Internet"
  wallpaper_name=`date +"%s%3N"`.jpg
  wget -O "$wallpapers_path/$wallpaper_name" https://unsplash.it/2560/1440/?random
else
  echo "Set last wallpaper"
  wallpaper_name=`ls -t $wallpapers_path | head -1`
fi
ln -sf "$wallpapers_path/$wallpaper_name" /tmp/wallpaper.jpg
gsettings set org.gnome.desktop.background picture-uri "file:///tmp/wallpaper.jpg"