The maxinterval program

This command is obsolete; it is no longer included in the current version. 
maxinterval program [arg ...]

maxinterval stat()s the file named in $MAXINTERVAL_FILE; if the file exists (normally, it should be a file which is touched each time the scheduled job runs - log/main/current may be a convenient choice), then maxinterval reduces $DELAY as necessary to ensure that the current time plus $DELAY seconds is no later than the file's modification time plus $MAXINTERVAL seconds. If $MAXINTERVAL seconds have already passed since the file's modification time, maxinterval sets $DELAY to 0. Finally, maxinterval runs the given command.