Pulls ruby 1.8.7 out of the amazon instance. Installs 2.0.

ruby_2_install_at_amazon.rb

#!/bin/bash
# I don't know if this will actually run as a script, but I threw the shebang in anyway
# executing the individual step works fine.
###############################################
# To use: 
# wget -O install-ruby-2.sh https://gist.github.com/mrkplt/8229498/raw
# chmod 755 install-ruby-2.sh
# sudo ./install-ruby-2.sh
###############################################
sudo yum -y update
sudo ln -sf /usr/share/zoneinfo/America/New_York \/etc/localtime
sudo yum -y install gcc gcc-c++ make 
sudo su -
yum -y remove ruby
yum -y groupinstall 'Development Tools'
yum -y groupinstall development-libs
yum -y install libffi-devel
yum -y install libyaml-devel
yum -y update
wget http://cache.ruby-lang.org/pub/ruby/2.1/ruby-2.1.1.tar.gz
tar xzvf ruby-2.1.1.tar.gz
cd ruby-2.1.1
./configure
make
make install
make clean
cd ..
rm -rf ruby-2.1.1*
exit