Managing Ruby versions - maggie1000/garden GitHub Wiki

• If you are using rvm, run:

rvm implode

• Install rbenv: https://github.com/sstephenson/rbenv

cd
git clone git://github.com/sstephenson/rbenv.git .rbenv
echo 'export PATH="$HOME/.rbenv/bin:$PATH"' >> ~/.bash_profile
echo 'eval "$(rbenv init -)"' >> ~/.bash_profile
git clone git://github.com/sstephenson/ruby-build.git ~/.rbenv/plugins/ruby-build
source ~/.bash_profile

^-- via http://octopress.org/docs/setup/rbenv/