In Ubuntu Unity, Ctrl+Super+D key combination can be used to hide all windows and show desktop. This tutorial shows how to add ‘Show Desktop’ icon onto Unity launcher in Ubuntu 12.04.

  • Method 1. Use Myunity
    Myunity is a popular unity configuration tool. You can install it from Ubuntu Software Center.

    Then launch Myunity, under Desktop tab tick on ‘Active Show Desktop Icon’

  • Method 2. Use CompizConfig Settings Manager

    Launch terminal from the dash home (or use Ctrl+Alt+T), execute this command to intstall CCSM:

    sudo apt-get install compizconfig-settings-manager

    Then launch CCSM and click to go into Ubuntu Unity Plugin, at Experimental tab scroll down and tick on ‘Show Desktop Icon in the launcher’

  • Finally, you have this ‘Show Desktop’ icons on launcher!