But this will call perl over and over again which may not be desirable. Of course it may be the best way (up to doing it entirely in perl) to do it, if the files are too many. Update: thanks to EvanCarroll for pointing out my error.
Incidentally I was a big user of xargs myself, until someone pointed out to me the -exec parameter, although I find its syntax to be somewhat awkward -- but I can live with that.
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