Cairo Dock is an OS X like approach to alternative desktop environment. This tutorial will teach you how to install the latest version.

installation :

The Easy Way

In Precise, open your Update Manager. Then, click Settings. Under theOther Software tab, click Add. Paste the following line into the box and enter your password when prompted.
Check for Updates.
Now you need to run just one line in the Terminal.


In the Terminal

Press Ctrl+Alt+T to Open the Terminal :
Installing via the terminal is rather easy.