ruby_pi_install.sh

# install prerequisites
sudo apt-get install -y git curl zlib1g-dev subversion

# update the package index
sudo apt-get update

# install ruby dependencies 
sudo apt-get install -y openssl libreadline6-dev git-core zlib1g libssl-dev
sudo apt-get install -y libyaml-dev libsqlite3-dev sqlite3
sudo apt-get install -y libxml2-dev libxslt-dev
sudo apt-get install -y autoconf automake libtool bison

# install ruby with RVM; append --rails if you'd like 
curl -L get.rvm.io | bash -s stable

# after the packages are finished downloading and installing
# check to make sure ruby is installed
ruby -v

# it should return something like: ruby 1.9.3p194 (2012-04-20 revision 35410) [arm-linux-eabihf]