1.\" Copyright (c) 1994 Adam Glass 2.\" All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. 9.\" 2. The name of the Author may not be used to endorse or promote products 10.\" derived from this software without specific prior written permission. 11.\" 12.\" THIS SOFTWARE IS PROVIDED BY Adam Glass ``AS IS'' AND 13.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 14.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 15.\" ARE DISCLAIMED. IN NO EVENT SHALL Adam Glass BE LIABLE 16.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 17.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 18.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 19.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 20.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 21.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 22.\" SUCH DAMAGE. 23.\" 24.\" $FreeBSD: src/usr.bin/ipcrm/ipcrm.1,v 1.7.2.5 2003/02/24 23:04:38 trhodes Exp $ 25.\"" 26.Dd August 8, 1994 27.Dt IPCRM 1 28.Os 29.Sh NAME 30.Nm ipcrm 31.Nd "remove the specified message queues, semaphore sets, and shared segments" 32.Sh SYNOPSIS 33.Nm 34.Op Fl q Ar msqid 35.Op Fl m Ar shmid 36.Op Fl s Ar semid 37.Op Fl Q Ar msgkey 38.Op Fl M Ar shmkey 39.Op Fl S Ar semkey 40.Ar ... 41.Sh DESCRIPTION 42The 43.Nm 44utility removes the specified message queues, semaphores and shared memory 45segments. These System V IPC objects can be specified by their 46creation id or any associated key. 47.Pp 48The following options are used to specify which IPC objects will be removed. 49Any number and combination of these options can be used: 50.Bl -tag -width indent 51.It Fl q Ar msqid 52Remove the message queue associated with the id 53.Ar msqid 54from the system. 55.It Fl m Ar shmid 56Mark the shared memory segment associated with id 57.Ar shmid 58for removal. 59This marked segment will be destroyed after the last detach. 60.It Fl s Ar semid 61Remove the semaphore set associated with id 62.Ar semid 63from the system. 64.It Fl Q Ar msgkey 65Remove the message queue associated with key 66.Ar msgkey 67from the system. 68.It Fl M Ar shmkey 69Mark the shared memory segment associated with key 70.Ar shmkey 71for removal. 72This marked segment will be destroyed after the last detach. 73.It Fl S Ar semkey 74Remove the semaphore set associated with key 75.Ar semkey 76from the system. 77.El 78.Pp 79The identifiers and keys associated with these System V IPC objects can be 80determined by using 81.Xr ipcs 1 . 82.Sh SEE ALSO 83.Xr ipcs 1 84