The Guide shows you Step-by-Step How to Getting-Started Install/Manage Multiple Ruby Versions by RVM(Ruby Version Manager) on Linux Xubuntu 12.04 Precise Pangolin i386/Amd64 Desktops.
The Post Clearly Explains in Details All Steps Involved in Getting-Started with RVM Ruby Manager.
To the Article Bottom you Find Link to Tutorial 4 Getting-Started Quickly in Installing and Managing Multiples Rubies by RVM.
The Content give Focus Only to the Essentials Instructions and Commands to make it Easier to Follow.