Reinstall rbenv just how I likes it.

install-rbenv.sh

#!/bin/bash

RBENV_LOC=$HOME/.rbenv

if [ -d $RBENV_LOC ]; then
  rm -rf $RBENV_LOC
fi

echo 'Cloning rbenv...'
git clone --depth 1 -q https://github.com/rbenv/rbenv.git $RBENV_LOC

cd $RBENV_LOC && mkdir plugins
cd plugins

echo 'Cloning plugins...'
echo '...ruby-build...'
git clone --depth 1 -q https://github.com/rbenv/ruby-build.git
echo '...rbenv-update...'
git clone --depth 1 -q https://github.com/rkh/rbenv-update.git
echo '...rbenv-gem-rehash...'
git clone --depth 1 -q https://github.com/sstephenson/rbenv-gem-rehash.git
echo '...rbenv-default-gems...'
git clone --depth 1 -q https://github.com/sstephenson/rbenv-default-gems.git

echo 'Adding default gems...'
cd $RBENV_LOC
echo 'bundler' | tee default-gems
echo 'sass' | tee default-gems
echo 'rails' | tee default-gems

rbenv install 2.2.4 && rbenv global 2.2.4

echo 'ruby -v'
ruby -v

echo 'Ruby installed -probably- add the rbenv shim to your *rc file of choice: '
echo '    export PATH="$HOME/.rbenv/bin:$PATH"'
echo '    eval "$(rbenv init -)"'