In Ubuntu 14.04, the Ubuntu Tweak tool does not offer the option to move the buttons to the right. In order to do this install the Unity Tweak Tool from the Ubuntu Software Library. To run Ubuntu Tweak enter at a terminal:
Install unity-tweak-tool from the repros. Start it by navigating to System Tools, Preferences Unity Tweak Tool . Start the tool and then look
for "Appearance". Click the "Window Controls". Under "Layout" choose
"Left" or "Right" for the alignment.
Screen shots for this are below. Enjoy.