Install Cinnamon desktop in ubuntu 14.04 (Trusty)
Cinnamon is a GTK+ 3-based desktop environment. The project originally started as a fork of the GNOME Shell, i.e. a mere graphical shell. Cinnamon was initially developed by (and for) the Linux distribution Linux Mint.
Because the Cinnamon desktop environment intends to implement a different graphical user interface (GUI) than GNOME desktop environment, many of the GNOME Core Applications were forked, so that their GUIs can be rewritten appropriately.
Install Cinnamon desktop in ubuntu 14.04 (Trusty)
Open the terminal and run the following commands
sudo add-apt-repository ppa:lestcape/cinnamon
sudo apt-get update
sudo apt-get install cinnamon
If you want to uninstall Cinnamon desktop in ubuntu 14.04 (Trusty)
Open the terminal and run the following commands
sudo apt-get install ppa-purge
sudo ppa-purge ppa:lestcape/cinnamon