skill sends signals to processes given any combination of user names, ttys, commands, and pids. snice changes the priority of processes (given the same). They are similar to kill(1) and renice(8), but the commandline is order-independent. There are also verbose, search, and interactive modes of operation.
Reliable Response Notification provides guaranteed delivery of critical messages to a wide range of devices. It guarantees that every emergency will have one, and only one, person responding and taking charge of the recovery. For integrated services, like some network monitors, help-desk packages, and security suites, Reliable Response Notification allows the user to update records via their mobile devices. It is available as either a standalone server or as a hosted service.