mininterval programmininterval program [arg ...]
mininterval stat()s the file named in
$MININTERVAL_FILE; if the file exists (typically, it
would be a file which is touched each time the scheduled job runs),
then mininterval increases $DELAY as
necessary to ensure that the current time plus $DELAY
seconds is no sooner than the file's modification time plus
$MININTERVAL seconds. If $DELAY is not set,
this is interpreted as an indefinite delay, and
mininterval leaves it unset. Finally,
mininterval runs the given command.