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.\" $Id: ipcrm.1,v 1.4 1997/06/23 04:52:05 steve 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 memory 32segments 33.Sh SYNOPSIS 34.Nm 35.Op Fl q Ar msqid 36.Op Fl m Ar shmid 37.Op Fl s Ar semid 38.Op Fl Q Ar msgkey 39.Op Fl M Ar shmkey 40.Op Fl S Ar semkey 41.Ar ... 42.Sh DESCRIPTION 43.Nm Ipcrm 44removes 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. Any number and combination of these options can be used: 49.Bl -tag -width indent 50.It Fl q Ar msqid 51Remove the message queue associated with the id 52.Nm msqid 53from the system. 54.It Fl m Ar shmid 55Mark the shared memory segment associated with id 56.Nm shmid 57for removal. 58This marked segment will be destroyed after the last detach. 59.It Fl s Ar semid 60Removes the semaphore set associated with id 61.Nm semid 62from the system. 63.It Fl Q Ar msgkey 64Remove the message queue associated with key 65.Nm msgkey 66from the system. 67.It Fl M Ar shmkey 68Mark the shared memory segment associated with key 69.Nm shmkey 70for removal. 71This marked segment will be destroyed after the last detach. 72.It Fl S Ar semkey 73Remove the semaphore set associated with key 74.Nm semkey 75from the system. 76.El 77.Pp 78The identifiers and keys associated with these System V IPC objects can be 79determined by using 80.Xr ipcs 1 81. 82.Sh SEE ALSO 83.Xr ipcs 1 84