ubuntu_ruby_install.sh

#!/bin/bash

# Install rbenv
# https://github.com/sstephenson/rbenv
cd ~

sudo apt-get update
sudo apt-get install git-core curl zlib1g-dev build-essential libssl-dev \
  libreadline-dev libyaml-dev libsqlite3-dev sqlite3 libxml2-dev libxslt1-dev -y

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

# reload .bash_profile
source ~/.bash_profile

# install ruby-build
# https://github.com/sstephenson/ruby-build
git clone git://github.com/sstephenson/ruby-build.git
cd ruby-build
sudo ./install.sh

# list available ruby versions
ruby-build --definitions

# install ruby
rbenv install 2.1.0

# Install shims for all Ruby binaries
rbenv rehash

# Set default Ruby version
rbenv global 2.1.0

# Check Ruby
ruby -v # => ruby 2.1.0p0 (2013-12-25 revision 44422) [x86_64-linux]

# Check OpenSSL
irb
require 'openssl' # => true

# install rehash gem
git clone https://github.com/sstephenson/rbenv-gem-rehash.git ~/.rbenv/plugins/rbenv-gem-rehash
gem install bundler