RollingDirectory is a daemon which monitors changes in directory contents limiting it's size to a given value. The directory with all it's subdirectories get monitored.
$> RollingDirectory -h
-h --help Print this helping text
-D start|stop|restart --daemon=start|stop|restart Start the program in daemon mode
-d directory --dir=directory The directory to monitor and process
-s SIZE [MB|GB|TB] --size=SIZE [MB|GB|TB] The maximum size of the directory in KB,
the extensions 'MB', 'GB' and 'TB' are supported.