1.\" $NetBSD: ipcrm.1,v 1.11 2008/06/01 10:25:29 wiz Exp $ 2.\" 3.\" Copyright (c) 1994 Adam Glass 4.\" All rights reserved. 5.\" 6.\" Redistribution and use in source and binary forms, with or without 7.\" modification, are permitted provided that the following conditions 8.\" are met: 9.\" 1. Redistributions of source code must retain the above copyright 10.\" notice, this list of conditions and the following disclaimer. 11.\" 2. The name of the Author may not be used to endorse or promote products 12.\" derived from this software without specific prior written permission. 13.\" 14.\" THIS SOFTWARE IS PROVIDED BY Adam Glass ``AS IS'' AND 15.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17.\" ARE DISCLAIMED. IN NO EVENT SHALL Adam Glass BE LIABLE 18.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24.\" SUCH DAMAGE. 25.\" 26.\" $NetBSD: ipcrm.1,v 1.11 2008/06/01 10:25:29 wiz Exp $ 27.\" 28.Dd May 31, 2008 29.Dt IPCRM 1 30.Os 31.Sh NAME 32.Nm ipcrm 33.Nd remove the specified message queues, semaphore sets, and shared memory segments 34.Sh SYNOPSIS 35.Nm 36.Op Fl M Ar shmkey 37.Op Fl m Ar shmid 38.Op Fl Q Ar msgkey 39.Op Fl q Ar msqid 40.Op Fl S Ar semkey 41.Op Fl s Ar semid 42.Ar ... 43.Sh DESCRIPTION 44.Nm 45removes the specified message queues, semaphores, and shared memory 46segments. 47These System V IPC objects can be specified by their 48creation ID or any associated key. 49.Pp 50The following options are used to specify which IPC objects will be removed. 51Any number and combination of these options can be used: 52.Bl -tag -width indent 53.It Fl M Ar shmkey 54Mark the shared memory segment associated with key 55.Ar shmkey 56for removal. 57This marked segment will be destroyed after the last detach. 58.It Fl m Ar shmid 59Mark the shared memory segment associated with ID 60.Ar shmid 61for removal. 62This marked segment will be destroyed after the last detach. 63.It Fl Q Ar msgkey 64Remove the message queue associated with key 65.Ar msgkey 66from the system. 67.It Fl q Ar msqid 68Remove the message queue associated with the ID 69.Ar msqid 70from the system. 71.It Fl S Ar semkey 72Remove the semaphore set associated with key 73.Ar semkey 74from the system. 75.It Fl s Ar semid 76Removes the semaphore set associated with ID 77.Ar semid 78from the system. 79.El 80.Pp 81If the 82.Ar id 83or 84.Ar key 85argument is 86.Dq all 87then all entries of the appropriate type are removed. 88.Pp 89The identifiers and keys associated with these System V IPC objects can be 90determined by using 91.Xr ipcs 1 . 92.Sh SEE ALSO 93.Xr ipcs 1 , 94.Xr shmat 2 , 95.Xr shmctl 2 , 96.Xr shmdt 2 , 97.Xr shmget 2 98