Ruby environment messed up, How to uninstall ruby-gems-rails from Leopard?

my ruby environment in my mac Leopard is all messed up. And I want to uninstall the entire ruby, gem stack and install them again from scratch. How can I do it ?please point me towards a good resour开发者_开发知识库ce on the net.

thanks

Have a look at RVM. Makes running multiple rubies and gemsets a breeze.

Don't Uninstall the pre-installed Ruby in Mac

And have you tried rubyosx?