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Perturb.org - interesting technology related things from around the internet

Perl: Check if a pid is active

If you need to see if a pid is currently active you can use send the process a null signal using kill(). You can create a function to check the status of a pid like this:

sub is_running {
    my $pid = shift();

    # Check if the pid is active
    my $running = kill(0, $pid);

    return $running;
}


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