I'd say a cron job that removes files older than 10 minutes is in general cleaner, but one possibility would be fork and wait 10 minutes, a la:
if (!fork) {
sleep 600;
unlink "$gmtstring-$filehandle";
exit;
}
Of course, for production, you'll want to test to make sure fork returns defined, probably set $SIG{CHLD}='IGNORE' (see perlipc) and a couple other clean-ups.
#11929 First ask yourself `How would I do this without a computer?' Then have the computer do it the same way.
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