killpg - phpMan

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  con-
       tinue signal SIGCONT 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 appropri-
       ately.

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 pro-
              cesses  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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