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@(#)killpg.2 8.1 (Berkeley) 6/2/93
$FreeBSD$
.Dd March 15, 2012 .Dt KILLPG 2 .Os .Sh NAME .Nm killpg .Nd send signal to a process group .Sh LIBRARY .Lb libc .Sh SYNOPSIS n sys/types.h n signal.h .Ft int .Fn killpg "pid_t pgrp" "int sig" .Sh DESCRIPTION The .Fn killpg function sends the signal .Fa sig to the process group .Fa pgrp . See .Xr sigaction 2 for a list of signals. If .Fa pgrp is 0, .Fn killpg sends the signal to the sending process's process group.
The Regents of the University of California. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
4. Neither the name of the University nor the names of its contributors
may be used to endorse or promote products derived from this software
without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
SUCH DAMAGE.
@(#)killpg.2 8.1 (Berkeley) 6/2/93
$FreeBSD$
.Dd March 15, 2012 .Dt KILLPG 2 .Os .Sh NAME .Nm killpg .Nd send signal to a process group .Sh LIBRARY .Lb libc .Sh SYNOPSIS n sys/types.h n signal.h .Ft int .Fn killpg "pid_t pgrp" "int sig" .Sh DESCRIPTION The .Fn killpg function sends the signal .Fa sig to the process group .Fa pgrp . See .Xr sigaction 2 for a list of signals. If .Fa pgrp is 0, .Fn killpg sends the signal to the sending process's process group.
p The sending process must be able to .Fn kill at least one process in the receiving process group. .Sh RETURN VALUES .Rv -std killpg .Sh ERRORS The .Fn killpg function will fail and no signal will be sent if: l -tag -width Er t Bq Er EINVAL The .Fa sig argument is not a valid signal number. t Bq Er ESRCH No process can be found in the process group specified by .Fa pgrp . t Bq Er EPERM .Fn kill returns EPERM for all processes in the process group. .El .Sh SEE ALSO .Xr getpgrp 2 , .Xr kill 2 , .Xr sigaction 2 .Sh HISTORY The .Fn killpg function appeared in x 4.0 .