おりょ？動くよ？
use strict;
my $stop = 0;
$SIG{"INT"} = sub {
$stop = 1;
print "sigint received\n";
};
while (1) {
print "loop start\n";
sleep 3;
if ($stop) {
print "stop flag is true\n";
exit 1;
}
print "loop end\n";
}
こんな感じの出力：
daisuke@beefcake-7 ~$ perl hoge.pl
loop start
^Csigint received
stop flag is true
daisuke@beefcake-7 ~$
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