Removing all installed Gems and starting over

From the RVM support site:

RVM installs everything into ~/.rvm. To remove RVM from your system run ‘rm -rf ~/.rvm’. You may have one additional config file in ~/.rvmrc and of course the RVM hook in your bash/zsh startup files.

So, just go to the command line and type rm -rf ~/.rvm

All the installed gems are in the ~/.rvm folders, so doing the above will remove the gems and installed rubies in one go.

Gems you added pre-RVM with the default ruby install can be removed by typing this at the command prompt:

for x in `gem list --no-versions`; do gem uninstall $x -a -x -I; done

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