Click here to install the plugin using a PPA
You can now move the Unity launcher panel from the left side of your screen to the bottom thanks to an unofficial Compiz plugin. Please note that this only works on Unity 3D.
First open your Home folder and create a new folder and name the folder: unityshell
You may need to install lzma, to install lzma open a terminal windw (press SuperKey and type: terminal) and copy+paste the following line:
sudo apt-get install lzma
Now download the Unity plugin and when downloaded extract the content of the downloaded unityshell.tar.lzma into the unityshell you just made.
To install the plugin copy+paste the following lines in your terminal window:
mkdir -p ~/.compiz-1/plugins
cd ~/unityshell
cp libunityshell.so ~/.compiz-1/plugins/
mkdir /tmp/unityshell
cp *.png /tmp/unityshell/
cd /tmp/unityshell/
chmod 644 *.png
sudo chown root:root *.png
sudo cp *.png /usr/share/unity/4/
Now log out and back in again.
If you use the launcher with autohide, make sure you set the reveal mode to bottom in CompizConfig Settings Manager.
Revert the changes
To revert the changes and get the default (on the left) Unity Launcher back, run the following command in a terminal:
rm ~/.compiz-1/plugins/libunityshell.so
Then log out and log back in.
Source: webupd8
Excellent work, just one bug(?) when I minimise say firefox and then maximise, there is a small gap below the window. can this be fixed?
They are still working on fixing bugs and when a bug is fixed and you installed the plugin using the ppa the plugin will be updated automatically
not working on 12.04 (sudo cp *.png /usr/share/unity/4/) says no such directory
Did you try the PPA? http://www.n00bsonubuntu.net/content/how-to-install-ubuntu-unity-bottom-launcher-via-ppa/ it’s for Ubuntu 11.10 but if all is well it should be working on 12.04. Please note that i haven’t tested it on 12.04