<storage, operating system> (GFR) An ITS and LISP Machine utility to remove files according to some program-automated or semi-automatic manual procedure, especially one designed to reclaim mass storage space or reduce name-space clutter (the original GFR actually moved files to tape).
See also prowler, reaper. Compare GC, which discards only provably worthless stuff.
Try this search on Wikipedia, OneLook, Google
Nearby terms: GRIB « grick « grilf « Grim File Reaper » GRIND » grind » grind crank