# Install rbenv
git clone git://github.com/sstephenson/rbenv.git ~/.rbenv
echo 'export PATH="$HOME/.rbenv/bin:$PATH"' >> ~/.bashrc
echo 'eval "$(rbenv init -)"' >> ~/.bashrc
source ~/.bashrc

# Install and enable ruby-1.9.3-p286
rbenv install 1.9.3-p286 && rbenv global 1.9.3-p286