gistfile1.sh

This example shows how to setup an environment running Rails 3 beta under 1.9.1 with a 'rails3' gem set.

∴ rvm update --head
# ((Open a new shell))

# If you do not already have the ruby interpreter installed, install it:
∴ rvm install 1.9.1 

# Use the ruby + gem set
∴ rvm 1.9.1%rails3

# Install bundler
∴ gem install bundler

# Clone the git repository:
∴ git clone git://github.com/rails/rails.git 

# Go to the directory
∴ cd rails

# Bundle and install
∴ bundle install
∴ rake install

# Check to see we now have Rails 3.0.0 beta
∴ rails --version
Rails 3.0.0.beta