How to reset my default setting?

How do I reset my viewport default setting back to when I first installed Blender 3D after I have saved over my own setup?

In your instalation folder (windows) you have a “.blender” folder, inside you have a “.b.blend” file. Delete it. Now run Blender and press CTRL+U to save this as your new defaults.

I guess in Linux is the same (just a guess).