WARNING: Linux Mint 15 users installing gnome shell will break your Cinnamon desktop.

http://ribalinux.blogspot.pt/

This video shows how you can install GNOME Shell 3.8 on ubuntu 13.04.

Commands

2 – sudo add-apt-repository ppa:gnome3-team/gnome3-staging
3 – sudo add-apt-repository ppa:gnome3-team/gnome3
4 – sudo apt-get update
5 – sudo apt-get install gnome-shell gnome-shell-extensions gnome-tweak-tool

Music
“Inspiration” (by BoxCat Games)
(http://freemusicarchive.org/music/BoxCat_Games/
Nameless_the_Hackers_RPG_Soundtrack/
BoxCat_Games_-_Nameless-_the_Hackers_RPG_Soundtrack_-_07_Inspiration)
Licensed under Creative Commons Attribution 3.0
http://creativecommons.org/licenses/by/3.0/

gnome shell
gnome 3.8
linux
how to
ubuntu
ubuntu 13.04
linux mint 15

source