Re: [FWP] Wanted - Have = Need

[Ronald J Kimball <rjk@linguist.dartmouth.edu>]

On Fri, Oct 13, 2000 at 10:28:07AM -0400, Keith Calvert Ivey wrote:
> Ronald J Kimball <rjk@linguist.dartmouth.edu> wrote:
> 
> >  perl -e '@w{<>}=();@ARGV=HAVE;delete@w{<>};print%w' WANT
> 
> One stroke less, but less forgiving of incorrect files:
> 
>    perl -e "$w{$_}++for<>;print+grep$w{$_}&1,%w" WANT HAVE

What if he has something that he doesn't want?  This looks more like a
complemented intersection than a minus.  :)

Ronald

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