Installs ruby-2.0.0-p195 on ubuntu via checkinstall so it's in your package manager and you can remove it.
Quick install:
curl -L https://gist.github.com/ggayan/5637565/raw/5835fe8ae3efb2c96c75c59ada2b1ecbe123bcfb/ruby-2-install-ubuntu.sh | bash -s