You just upgraded to the shiny new Gnome Shell. Now what? Before you go tweaking Gnome Shell, I have 4 things you should do first.
1. Remove Unity
Once upgrading to Gnome 3, you cannot use Unity anymore. You might as well remove it from your computer to free up disk space. Run the following command in the terminal to remove it:
sudo apt-get remove unity
2. Remove Overlay Scrollbars
After Unity is removed, remove the overlay scrollbar used with Unity. Run the following command to remove it:
sudo apt-get remove scrollbar*
After removing the Unity from your computer, I recommend installing the following 2 programs to tweak Gnome Shell. These programs will be used in my future tutorials.
3. Install Gnome Tweak Tool
Run the following command to install the Gnome Tweak Tool:
sudo apt-get install gnome-tweak-tool
4. Install dconf
Dconf is the equivalent of gconf in previous versions of Ubuntu. Run the following command to install it:
sudo apt-get install dconf-tools