bundle-clean - Man Page
Cleans up unused gems in your bundler directory
bundle clean [--dry-run] [--force]
This command will remove all unused gems in your bundler directory. This is useful when you have made many changes to your gem dependencies.
Print the changes, but do not clean the unused gems.
Forces cleaning up unused gems even if Bundler is configured to use globally installed gems. As a consequence, removes all system gems except for the ones in the current application.