setpriority

setpriority which, who, priority

Sets the current priority for a process, a process group, or a user. which must indicate one of these types: PRIO_PROCESS, PRIO_PGRP, or PRIO_USER. who therefore identifies the specific process, process group, or user with its ID. priority is an integer number that will be added to or subtracted from the current priority; the lower the number, the higher the priority. The interpretation of a given priority may vary from one operating system to the next. See setpriority on your system. Invoking setpriority will produce a fatal error if used on a machine that doesn't implement setpriority.