show.envs               Show the environments referenced within an
                        object.
track                   Manage how objects are handled in a tracking
                        session
track-intro             Overview of track package
track.attach            Attach a tracking database to the search path.
track.auto              Query or set the status of automated tracking
track.copy              Copy or move objects from one tracking db to
                        another
track.design            Design of a tracking environment
track.future            Potential future features of the track package
track.history           Functions for incrementally writing command
                        history to a file.
track.info              Return filenames and directories for tracked
                        variables.
track.options           Set and get tracking options on a tracked
                        environment
track.performance       Performance tuning with track.
track.plugin.lru        Plugins for cache policies in the track
                        package.
track.preremove         Remove other resources associated with an
                        object.
track.rebuild           Rebuild database information for tracked
                        objects
track.rename            Rename variables in a tracked environment
track.start             Setup and stop tracking
track.status            Return information about the status of tracking
track.summary           Return a summary of the basic properties of
                        tracked objects
track.sync              Synchronize the tracking database stored in
                        files on disk to reflect changed, new, or
                        deleted objects in R, and flush excess objects
                        from memeory.
