Here's how you can install the MATE 1.8 desktop environment in Ubuntu 14.04. MATE offers a more traditional desktop environment than Ubuntu's Unity.
1. Open a terminal window.
2. Type in the following commands then hit Enter after each.
sudo add-apt-repository "deb http://repo.mate-desktop.org/archive/1.8/ubuntu $(lsb_release -cs) main"
wget -q http://mirror1.mate-desktop.org/debian/mate-archive-keyring.gpg -O- |
sudo apt-key add -
sudo apt-get update
sudo apt-get install mate-core mate-desktop-environment mate-notification-daemon
MATE is a fork of GNOME 2. It provides an intuitive and attractive desktop environment using traditional metaphors for Linux and other Unix-like operating systems. It provides an intuitive and attractive desktop to Linux users using traditional metaphors.More at Noobs Lab
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