Wallch (ver. 4.5) is a handy wallpaper changer that rotates your wallpapers. Here’s how you can install it in Linux Mint 17.
1. Open a terminal window.
2. Type in the following commands then hit Enter after each:
sudo add-apt-repository ppa:wallch/wallch-4.0
sudo apt-get update
sudo apt-get install wallch
3. Use this command to remove Wallch:
sudo apt-get remove wallch
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