GFR

from The Free On-line Dictionary of Computing (8 July 2008)

Grim File Reaper
GFR

   <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.

   (1996-06-20)