Installs ruby-2.0.0-p0 on ubuntu via checkinstall so it's in your package manager and you can remove it.
Quick install:
curl -L https://gist.github.com/ngauthier/5039249/raw/1868bf4714052b40e2bb7fdf3f40fbeb5d730bca/ruby-2-install-ubuntu.sh | bash -s