NetBSD-5.0.2/usr.bin/ipcrm/ipcrm.1

.\"	$NetBSD: ipcrm.1,v 1.11 2008/06/01 10:25:29 wiz Exp $
.\"
.\" Copyright (c) 1994 Adam Glass
.\" All rights reserved.
.\"
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.\" THIS SOFTWARE IS PROVIDED BY Adam Glass ``AS IS'' AND
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.\" $NetBSD: ipcrm.1,v 1.11 2008/06/01 10:25:29 wiz Exp $
.\"
.Dd May 31, 2008
.Dt IPCRM 1
.Os
.Sh NAME
.Nm ipcrm
.Nd remove the specified message queues, semaphore sets, and shared memory segments
.Sh SYNOPSIS
.Nm
.Op Fl M Ar shmkey
.Op Fl m Ar shmid
.Op Fl Q Ar msgkey
.Op Fl q Ar msqid
.Op Fl S Ar semkey
.Op Fl s Ar semid
.Ar ...
.Sh DESCRIPTION
.Nm
removes the specified message queues, semaphores, and shared memory
segments.
These System V IPC objects can be specified by their
creation ID or any associated key.
.Pp
The following options are used to specify which IPC objects will be removed.
Any number and combination of these options can be used:
.Bl -tag -width indent
.It Fl M Ar shmkey
Mark the shared memory segment associated with key
.Ar shmkey
for removal.
This marked segment will be destroyed after the last detach.
.It Fl m Ar shmid
Mark the shared memory segment associated with ID
.Ar shmid
for removal.
This marked segment will be destroyed after the last detach.
.It Fl Q Ar msgkey
Remove the message queue associated with key
.Ar msgkey
from the system.
.It Fl q Ar msqid
Remove the message queue associated with the ID
.Ar msqid
from the system.
.It Fl S Ar semkey
Remove the semaphore set associated with key
.Ar semkey
from the system.
.It Fl s Ar semid
Removes the semaphore set associated with ID
.Ar semid
from the system.
.El
.Pp
If the
.Ar id
or
.Ar key
argument is
.Dq all
then all entries of the appropriate type are removed.
.Pp
The identifiers and keys associated with these System V IPC objects can be
determined by using
.Xr ipcs 1 .
.Sh SEE ALSO
.Xr ipcs 1 ,
.Xr shmat 2 ,
.Xr shmctl 2 ,
.Xr shmdt 2 ,
.Xr shmget 2