Are you easily getting bored from using the same wallpaper to your Ubuntu machine? Here’s an easy way of enjoying a variety of easily interchangeable wallpapers with photos available as public domain, via Unsplash.com.
All you have to do is create an shell script file (i.e. unsplash.sh) using the following code and execute it every time you want a “fresh” wallpaper.
#/bin/bash wget -O /tmp/wallpaper.jpg https://unsplash.it/2560/1440/?random gsettings set org.gnome.desktop.background picture-uri file:///tmp/wallpaper.jpg
(source code originally found at youness.net)