rvm Cheat Sheet

Manage multiple ruby environments with RVM (Ruby Version Manager)

Installation

\curl -sSL https://get.rvm.io | bash -s stable
source /home/john.smith/.rvm/scripts/rvm
rvm use --default 1.8.7-p374
bundle install

Usage

rvm list
rvm list gemsets

rvm gemset list
rvm gemset create <name>
rvm gemset use <name>

rvm install <Ruby version>

rvm system  # Selete distro Ruby

# Install Gem into a version
rvm <Ruby version> do gem install <gem>

# Install bundle with a version
rvm 1.9.3 do bundle install

Alternative

Only availabe in Debian Wheezy (not before and not after, because only Wheezy had two Rubies to select from)

apt-get install ruby-switch
ruby-switch --set ruby1.8
ruby-switch --check