rvm

A tool for easily installing, managing, and working with multiple ruby environments.

More information.

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

rvm install {version(s)}

• 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

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