supressing tar'ing of directories

[Aharon Naiman]

Dear Tar'sters,

Hi.  I was wondering if there was some way for tar to tar up a
directory, only if some subfile therein needed to be tar'ed.  That is,
if for example no files need to be tar'ed (perhaps due to a --newer
constraint), then no files nor directories would be tar'ed at all.

Thanx for the think,

Aaron

-- 
Aaron ("Aharon") Naiman | Jerusalem College of Technology--Machon Lev
  address@hidden | http://hobbes.jct.ac.il/~naiman