October 19, 2012, 3:24 PM — Here's how you can install GNOME Shell in Ubuntu 12.10. You can use it instead of Unity.
1. Open a terminal window.
2. Type in the following command then hit Enter.
sudo apt-get install gnome-shell
3. Restart your system and choose GNOME Shell from the login screen.
To Do List After Installing Ubuntu 12.10 | Up Ubuntu