1.\" $OpenBSD: ipcrm.1,v 1.17 2015/09/09 21:23:31 schwarze 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.\"" 27.Dd $Mdocdate: September 9 2015 $ 28.Dt IPCRM 1 29.Os 30.Sh NAME 31.Nm ipcrm 32.Nd remove the specified message queues, semaphore sets, and shared \ 33memory segments 34.Sh SYNOPSIS 35.Nm ipcrm 36.Bk -words 37.Op Fl M Ar shmkey 38.Op Fl m Ar shmid 39.Op Fl Q Ar msgkey 40.Op Fl q Ar msqid 41.Op Fl S Ar semkey 42.Op Fl s Ar semid 43.Ar ... 44.Ek 45.Sh DESCRIPTION 46.Nm 47removes the specified message queues, semaphores, and shared memory 48segments. 49These System V IPC objects can be specified by their 50creation ID or any associated key. 51.Pp 52The options are as follows: 53.Bl -tag -width Ds 54.It Fl M Ar shmkey 55Mark the shared memory segment associated with key 56.Nm shmkey 57for removal. 58This marked segment will be destroyed after the last detach. 59.It Fl m Ar shmid 60Mark the shared memory segment associated with ID 61.Nm shmid 62for removal. 63This marked segment will be destroyed after the last detach. 64.It Fl Q Ar msgkey 65Remove the message queue associated with key 66.Nm msgkey 67from the system. 68.It Fl q Ar msqid 69Remove the message queue associated with the ID 70.Nm msqid 71from the system. 72.It Fl S Ar semkey 73Remove the semaphore set associated with key 74.Nm semkey 75from the system. 76.It Fl s Ar semid 77Removes the semaphore set associated with ID 78.Nm semid 79from the system. 80.El 81.Pp 82The identifiers and keys associated with these System V IPC objects can be 83determined by using 84.Xr ipcs 1 . 85.Sh EXIT STATUS 86.Ex -std ipcrm 87.Sh SEE ALSO 88.Xr ipcs 1 89.Sh STANDARDS 90The 91.Nm 92utility is compliant with the 93X/Open System Interfaces option of the 94.St -p1003.1-2008 95specification. 96