KILL(2)                  HP Integral PC                   KILL(2)
     KILL(2)                  HP Integral PC                   KILL(2)
     KILL(2)                  HP Integral PC                   KILL(2)
     KILL(2)                  HP Integral PC                   KILL(2)



     NAME
     NAME
     NAME
     NAME
          kill - send a signal to a process or a group of processes

     SYNOPSIS
     SYNOPSIS
     SYNOPSIS
     SYNOPSIS
          int kill (pid, sig)
          int pid, sig;

     DESCRIPTION
     DESCRIPTION
     DESCRIPTION
     DESCRIPTION
          Kill sends a signal to a process or a group of processes.
          The process or group of processes to which the signal is to
          be sent is specified by pid .  The signal that is to be sent
          is specified by sig and is either one from the list given in
          signal (2), or 0.  If sig is 0 (the null signal), error
          checking is performed but no signal is actually sent.  This
          can be used to check the validity of pid .

          The processes with a process ID of 0 and a process ID of 1
          are special processes (see intro (2)) and will be referred
          to below as proc0  and  proc1 respectively.

          If pid is greater than zero, sig will be sent to the process
          whose process ID is equal to pid .  Pid may equal 1.

          If pid is 0, sig will be sent to all processes excluding
          proc0  and  proc1 whose process group ID is equal to the
          process group ID of the sender.

          If pid is -1 and the effective user ID of the sender is not
          super-user, sig will be sent to all processes excluding
          proc0  and  proc1 whose real user ID is equal to the
          effective user ID of the sender.

          If pid is -1 and the effective user ID of the sender is
          super-user, sig will be sent to all processes excluding
          proc0  and  proc1.

          If pid is negative but not -1, sig will be sent to all
          processes whose process group ID is equal to the absolute
          value of pid .

          Kill will fail and no signal will be sent if one or more of
          the following are true:

               Sig is not a valid signal number.  [EINVAL]

               No process can be found corresponding to that specified
               by pid .  [ESRCH]

     RETURN VALUE
     RETURN VALUE
     RETURN VALUE
     RETURN VALUE
          Upon successful completion, a value of 0 is returned.
          Otherwise, a value of -1 is returned and errno is set to
          indicate the error.



     Hewlett-Packard               - 1 -            (printed 12/12/84)






     KILL(2)                  HP Integral PC                   KILL(2)
     KILL(2)                  HP Integral PC                   KILL(2)
     KILL(2)                  HP Integral PC                   KILL(2)
     KILL(2)                  HP Integral PC                   KILL(2)



     SEE ALSO
     SEE ALSO
     SEE ALSO
     SEE ALSO
          kill(1), getpid(2), setpgrp(2), signal(2).





















































     Hewlett-Packard               - 2 -            (printed 12/12/84)