while (<>) {
    chomp;
    next unless length;
    if ($_ < 0) {
        push @negatives, $_;
    }
    else {
        push @positives, $_;
    }
}

[download]

Update: This code was posted before the OP added code to his post.


Dave

In reply to Re: calculate sum of numbers inside a text file by davido
in thread calculate sum of numbers inside a text file by CR18

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