GNOME is a free and open-source desktop environment for Linux system. For Ubuntu, GNOME is available as GNOME shell and GNOME desktop. GNOME Shell is just a desktop environment which changes the UI of your Linux OS. And the GNOME…
To install gnome 3 on ubuntu 12.04
1.Open Terminal.To open terminal click the Dash home from unity launcher.And type terminal in the search field. And click Terminal.
2.Type the below code in terminal and hit enter.
sudo add-apt-repository ppa:gnome3-team/gnome3
3.Type your ubuntu password if needed.
4.Then press enter to continue or ctrl-c to cancel adding the ppa.
5.Type below command and hit enter
sudo apt-get update
6.Then type below command and press enter
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