One of the great new features in Ubuntu Desktop 16.04 LTS is that the left launcher panel now is movable: to Left or to Bottom.
In this tutorial, I demonstrate how to move Unity’s left launcher to the bottom, using a virtual machine as an example.
gsettings set com.canonical.Unity.Launcher launcher-position Bottom
gsettings set com.canonical.Unity.Launcher launcher-position Left
Ubuntu Desktop 16.04 LTS
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