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rbenv

A tool to easily install Ruby versions and manage application environments. Homepage: https://github.com/rbenv/rbenv.

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}}