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Perl: the Markov chain saw

Re: parallel reading

by blazar (Canon)
on May 09, 2006 at 13:49 UTC ( #548210=note: print w/replies, xml ) Need Help??

in reply to parallel reading

Since others already gave you good general purpose suggestions...

#!/usr/bin/perl -l use strict; use warnings; my @fh=map { open my $fh, '<', $_ or die "Can't open `$_': $!\n"; $fh } @ARGV; while (@fh) { @fh=grep !eof $_, @fh; print map { chomp(my $line=<$_>); $line } @fh; } __END__

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Re^2: parallel reading
by roboticus (Chancellor) on May 09, 2006 at 19:15 UTC

    Very nice (++)! I've never used map before, but that's an eye opener. It's so much better than my (admittedly terrible) hack, and clear to boot. That example is going on my "cheatsheet" of tips I keep pinned to my cube wall.


      Now that you know... beware! It's easy to get addicted to map & grep. They're good for... the jobs they're good for! Do not abuse them!

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