.\" Copyright (c) 1980 Regents of the University of California.
.\" All rights reserved. The Berkeley software License Agreement
.\" specifies the terms and conditions for redistribution.
.\" @(#)setpgid.2 6.1 (Berkeley) %G%
setpgrp \- set process group
sets the process group of the specified process
is zero, then the call applies to the current process.
If the invoker is not the super-user, then the affected process
must have the same effective user-id as the invoker or be a descendant
returns when the operation was successful. If
the request failed, \-1 is returned and the global
will fail and the process group will not be altered if
one of the following occur:
The requested process does not exist.
The effective user ID of the requested process is different
from that of the caller and the process is not a descendent