Ruby on Ubuntu

gistfile1.sh

# Source: Brightbox (http://wiki.brightbox.co.uk/docs:ruby-ng)
sudo apt-get install python-software-properties
sudo apt-add-repository ppa:brightbox/ruby-ng
sudo apt-get update
sudo apt-get install ruby rubygems ruby-switch
sudo apt-get install ruby1.9.3

# Switching ruby version:
ruby-switch --list
sudo ruby-switch --set ruby1.9.1

# Bundler
sudo gem install bundler