(?:(((http|https|ftp|ftps)\:\/\/)|(www\.))[a-zA-Z0-9\-\.]+\.[a-zA-Z]{2,3}(\:[0-9]+)?(\/\S*)?)(?<!\.jpg|\.png|\.gif|\.jpeg)(?:\s|$)$ mdadm --monitor --help
...
--program= -p : Program to run when an event is detected
--alert= : same as --program