> > > the find ... | xargs ... is:
> > ...
> > > 	(2) is portable to any POSIX system,
> > 
> > How many different systems are we concerned with?  I can only think of 
> > 1...  :)
> 
> uh, I, for one, work with ... at least 5 different UNIX variants on a
> regular basis, some of which i have source code for, some of which i
> don't.  Adding a feature to 'grep' on one of them won't help me on any
> of the others, and i won't use it...
> 

That's the bottom line.

You *can't* use it in portable shell code. . .Who needs it?