You can substitute this: 
foreach (@tcpstatus) {
    while (/\b01\s/) {
        push(@tcpalive,$_);
        last;
    }
}

[download]
for this: 
@tcpalive = grep { /\b01\s/ } @tcpstatus;

[download]

In reply to Re: efficiency & style by gregorovius
in thread efficiency & style by djw

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