Hi! Just keep track in your parent to see if/how many times ctrl-c was pressed: like :

[...]
my $pid = fork;
my $dontDie = 2;
[...]
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And then in your Interrupt routine:

 $SIG{INT} = sub {
        die "This is the end" unless --$dontDie;
        warn "Sending sig INT to child PID $pid";
        kill 'INT' => $pid;
        };
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(This is just a quick fix, do please pay close attention to jbert's comments)