rvm

Easily installing, managing, and working with multiple ruby environments. More information: https://rvm.io.

• Install one or more versions of Ruby:

rvm install {{version1 version2 ...}}

• Display a list of installed versions:

rvm list

• Use a specific version of Ruby:

rvm use {{version}}

• Set the default Ruby version:

rvm --default use {{version}}

• Upgrade a version of Ruby to a new version:

rvm upgrade {{current_version}} {{new_version}}

• Uninstall a version of Ruby and keep its sources:

rvm uninstall {{version}}

• Remove a version of Ruby and its sources:

rvm remove {{version}}

• Show specific dependencies for your OS:

rvm requirements