This document provides information about setting up Ruby on Mac OS X. It discusses using Homebrew to install Ruby and manage versions. It also mentions using RVM (Ruby Version Manager) as an alternative to Homebrew for installing and managing multiple Ruby environments and versions. Finally, it provides some examples of using the ruby, irb and gem commands once Ruby is installed.
22. RVM is a command-line tool which
allows you to easily install,
manage and work with multiple
ruby environments, from
interpreters to sets of gems.
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