Being the noob that I am, I seemed to have changed the permissions of /usr not knowing the consequence of that action. That's pretty much locked me out of my system, not allowing me to do anything.
Reading up more on this, it sounds like a very bad thing that will probably cause me to have to reinstall my OS. Is there a way I can fix this in any way without reinstalling or at least saving my settings? If I have to redo all my server settings again I might cry.