azaria

If you're on a *nix box, you could use the paste command, e.g.:

paste A B C

[download]
But since you asked on perlmonks, you could try something like this (terrible) program:

#!/usr/bin/perl -w
use strict;
use warnings;
open(A,"<A") or die "Can't open A!";
open(B,"<B") or die "Can't open B!";
open(C,"<C") or die "Can't open C!";

my @a = <A>;
my @b = <B>;
my @c = <C>;

while (1) {
    my $fl=0;
    my $aa = shift @a || "";
    my $bb = shift @b || "";
    my $cc = shift @c || "";
    chomp $aa;
    chomp $bb;
    chomp $cc;
    print $aa, $bb, $cc, "\n";
    next if $#a + $#b + $#c;
    last;
}

[download]
--roboticus

In reply to Re: parallel reading by roboticus
in thread parallel reading by azaria

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