Change your GNOME wallpaper automatically with Wallpapoz

"Now I will preface this article by saying the developer has ceased development of Wallpapoz (he did so in 2008.) Even though it is no longer in development, Wallpapoz still works just fine. And I am sure at some point some one will pick up development of the application. But until then, Wallpapoz is a cool app that helps make your desktop even better.

"Getting and installing
Most likely Wallpapoz is in your distributions’ repository, so installation is accomplished as simply as issuing a command like:

yum install wallpapoz

or

sudo apt-get install wallpapoz"