/sources/plan9/sys/src/cmd/plumb/
     18492 2013-02-22 fsys.c
      8191 2013-09-18 match.c
       298 2008-05-26 mkfile
      2075 1999-12-12 plumb.c
      2204 2013-01-25 plumber.c
      1504 2002-03-01 plumber.h
     13262 2013-01-25 rules.c