title: Removing all installed Gems and starting over
body: <p>I recently started learning Ruby and Ruby on Rails, and have watched a plethora of getting started materials.  I have been finding lately that I keep getting errors where gems won't install or they will be installed but they can't be used for some reason, and I have decided that I want to remove everything down to once again just having Ruby installed and start over with the installation.  One training video had me install most of my gems with RVM, so I don't know if that changes anything.</p>
  
  <p>So in short my question is "How to I get rid of RVM, Rubygems, and all installed Gems so that I can start over with just Ruby?"</p>
  
  <p><strong>Edit: I am on Mac OS 10.6</strong></p>