tldr/pages/common/rbenv.md

rbenv

A tool to easily install Ruby versions and manage application environments.

• Install one or more space-separated versions of Ruby:

rbenv install {{version(s)}}

• Display a list of installed versions:

rbenv versions

• Use a specific version of Ruby across the whole system:

rbenv global {{version}}

• Use a specific version of Ruby for an application/project directory:

rbenv local {{version}}

• Show the currently selected Ruby version:

rbenv version

• Uninstall a version of Ruby:

rbenv uninstall {{version}}

• Display all ruby versions that contain the specified executable:

rbenv whence {{executable}}