Install Caffeine in Ubuntu 12.04, Linux Mint 12 and Linux Mint 13

Installing Caffeine on Ubuntu 12.04, Linux Mint 12 and Linux Mint 13:
1. Adding the Caffeine repo:
sudo add-apt-repository ppa:caffeine-developers/ppa

2. Update the system:
sudo apt-get update

3. Install Caffeine:
sudo apt-get install caffeine python-glade2

Refer

• http://linuxg.net/install-caffeine-in-ubuntu-12-04-and-ubuntu-12-10/