Rbenv install steps

rbenv_install.sh

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

git clone git://github.com/sstephenson/ruby-build.git ~/.rbenv/plugins/ruby-build
echo 'export PATH="$HOME/.rbenv/plugins/ruby-build/bin:$PATH"' >> ~/.bashrc
exec $SHELL

rbenv install 2.0.0-p353
rbenv global 2.0.0-p353
ruby -v

#The last step is to tell Rubygems not to install the documentation for each package locally
echo "gem: --no-ri --no-rdoc" > ~/.gemrc