NAME    [Toc]    [Back]

       killpg - send signal to all members of a process group.

SYNOPSIS    [Toc]    [Back]

       #include <signal.h>

       int killpg(pid_t pidgrp, int signal);

DESCRIPTION    [Toc]    [Back]

       The  killpg()  function causes signal signal to be sent to all the processes
 in the process group pidgrp or to  the  processes'  own  process
       group if pidgrp is equal to zero.

       It is equivalent to

       kill(-pidgrp,signal);

RETURN VALUE    [Toc]    [Back]

       The value returned is -1 on error, or 0 for success.

ERRORS    [Toc]    [Back]

       Errors are returned in errno and can be one of the following:

       EINVAL for an invalid signal,

       ESRCH  for a process group which does not exist, and

       EPERM  if the userid of the calling process is not equal to that of the
	      process the signal is sent to, and the userid is not that of the
	      superuser.

CONFORMING TO    [Toc]    [Back]

       ???

SEE ALSO    [Toc]    [Back]

       kill(2), signal(2), signal(7)



GNU				  1993-04-04			     KILLPG(3)