In the first place, you should be using strict and warnings. If you had, you would have been warned that you are trying to use commas in a qw() list. In the second place, what you really want to do (to get the output you desire) is loop through the positions in the list and not have two loops. So: 
#!perl -w
use strict;
my $x=1;
my $y=2;
my @a=qw(1 2 3);
my @b=qw(7 8 9);

for my $pos(0..2) {
    print "$x:$a[$pos] $y:$b[$pos]\n";
}

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In reply to Re: read 2 array simultaneously by jZed
in thread read 2 array simultaneously by dee00zee

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