Starting from Ubuntu 16.04 LTS, you can move the your Unity launcher to the bottom of the ubuntu screen. Still there is no option in ubuntu’s system setting, but you do it via Ubuntu Terminal.
Move the Unity Launcher to the Bottom of Your Ubuntu
Open your terminal. To open terminal click the Dash home from unity launcher.And type terminal in the search field.And click Terminal.
Type the below command in the terminal and hit enter.
gsettings set com.canonical.Unity.Launcher launcher-position Bottom
To move the launcher to the left side of the screen , type the below command in the terminal and hit enter.
gsettings set com.canonical.Unity.Launcher launcher-position Left
Still you can’t move the launcher right side or top of your screen.
