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RedHat 9 (Linux i386) - man page for killpg (redhat section 2)

KILLPG(2)			    Linux Programmer's Manual				KILLPG(2)

NAME
       killpg - send signal to a process group

SYNOPSIS
       #include <signal.h>

       int killpg(int pgrp, int sig);

DESCRIPTION
       Killpg  sends  the  signal  sig to the process group pgrp.  See sigaction(2) for a list of
       signals.  If pgrp is 0, killpg sends the signal to the sending process's process group.

       The sending process and members of the process group must have the same effective user ID,
       or  the	sender must be the super-user.	As a single special case the continue signal SIG-
       CONT may be sent to any process that is a descendant of the current process.

RETURN VALUE
       On success, zero is returned.  On error, -1 is returned, and errno is set appropriately.

ERRORS
       EINVAL Sig is not a valid signal number.

       ESRCH  No process can be found in the process group specified by pgrp.

       ESRCH  The process group was given as 0 but the sending process does not  have  a  process
	      group.

       EPERM  The  sending  process is not the super-user and one or more of the target processes
	      has an effective user ID different from that of the sending process.

CONFORMING TO
       SVr4, 4.4BSD (The killpg function call first appeared in 4.0BSD).

SEE ALSO
       kill(2), getpgrp(2), signal(2)

BSD Man Page				    1993-07-23					KILLPG(2)


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