On Tue, Apr 17, 2001 at 08:15:48PM -0400, John Hawkinson wrote:
> 
> | of course, you can always do this:
> | 
> |    # cd /usr/src
> |    # find . -name Makefile | xargs grep ^.PATH | grep cksum
> 
> You should never use xargs like that, because it might call
> grep with only one argument in which case a filename would not be
> printened. Instead, use
> 
>   find . -name Makefile | xargs grep ^.PATH /dev/null | grep cksum
>                                             ^^^^^^^^^
I use ``grep -Hl ...'' to identify just the files involved.  other
versions of grep (notably, Plan 9's) seem not to have the H option,
and I've been toying with just the idea of using -vL for the
equivalent effect, but have yet to try it.

++L