Ruby enVironment Manager
Links
How-Tos
Managing Rubies
Install Specific Version
$ rvm install ruby-2.5.0
Download/compile ruby from HEAD (current dev/trunk version)
$ rvm install ruby-2-head
Managing Gemsets
Gemsets are the sets of Gems installed that are also coupled to the specific version(s) of Ruby installed.
Each gemset is tied to a specific Ruby version, and delineated with the ruby version, the @ symbol, and then the name of the gemset. I.e. 2.5.0@gemset-name
Creating a gemset:
$ rvm gemset create <gemset-name>
Activating a gemset:
$ rvm use 2.5.0@gemset-name