You need to trap the INT signal.

our $stopit = 0;
$SIG{INT} = sub  { $stopit++; };

while (!$stopit) {
    system("netstat -an | grep $line");
    sleep 10;
}

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90% of every Perl application is already written. ⇒
dragonchild

In reply to Re: How to end "do" with Ctrl-C by pfaut
in thread How to end "do" with Ctrl-C by st_possenti

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