Macintosh Terminal Pocket Guide

Controlling Processes

open	Open any file in its default Mac application.
kill	Terminate a process (or send it a signal).
nice	Invoke a program at a particular priority.
renice	Change a process’s priority as it runs.
shutdown	Reboot or halt the computer.

Once processes are started, they can be paused, restarted, terminated, and reprioritized. We discussed some of these operations as handled by the shell in Shell Job Control. Now we cover killing and reprioritizing.