use strict;
use warnings;

if (my $child = fork) {
    # foreground process
    sleep 5;
    kill 9, $child;
}

else {
    # background process
    exec("arecord", "file.wav");
}

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The fork plus exec combination allows you to cleanly launch a background process, and gives you the PID for the background process, which can later be passed to kill.

package Cow { use Moo; has name => (is => 'lazy', default => sub { 'Mooington' }) } say Cow->new->name

In reply to Re: best way to kill a spawned process by tobyink
in thread best way to kill a spawned process by redss

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