-- (signal.pl:9)
$SIG{'HUP'} = \&hup_handler;
set auto eval is on.
x1 (signal.pl:10)
my $tempfile;
Signal        Stop	Print	Stack	Pass	Description
HUP           Yes 	Yes 	No   	No  	Hangup

Program received signal HUP.
!! (signal.pl:21)
    sleep 1;
-- (signal.pl:21)
    sleep 1;
-- (signal.pl:21)
    sleep 1;
$DB::D[0] = 1