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1 .\" Copyright (c) 1994 Adam Glass
2 .\" All rights reserved.
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24 .\" $Id: ipcrm.1,v 1.3 2005/04/12 23:51:24 nicolai 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
32 segments
33 .Sh SYNOPSIS
34 .Nm ipcrm
35 .Op Fl M Ar shmkey
36 .Op Fl m Ar shmid
37 .Op Fl Q Ar msgkey
38 .Op Fl q Ar msqid
39 .Op Fl S Ar semkey
40 .Op Fl s Ar semid
41 .Ar ...
42 .Sh DESCRIPTION
43 .Nm Ipcrm
44 removes the specified message queues, semaphores and shared memory
45 segments. These System V IPC objects can be specified by their
46 creation id or any associated key.
47 .Pp
48 The following options are used to specify which IPC objects will be removed.
49 Any number and combination of these options can be used:
50 .Bl -tag -width indent
51 .It Fl M Ar shmkey
52 Mark the shared memory segment associated with key
53 .Nm shmkey
54 for removal.
55 This marked segment will be destroyed after the last detach.
56 .It Fl m Ar shmid
57 Mark the shared memory segment associated with id
58 .Nm shmid
59 for removal.
60 This marked segment will be destroyed after the last detach.
61 .It Fl Q Ar msgkey
62 Remove the message queue associated with key
63 .Nm msgkey
64 from the system.
65 .It Fl q Ar msqid
66 Remove the message queue associated with the id
67 .Nm msqid
68 from the system.
69 .It Fl S Ar semkey
70 Remove the semaphore set associated with key
71 .Nm semkey
72 from the system.
73 .It Fl s Ar semid
74 Removes the semaphore set associated with id
75 .Nm semid
76 from the system.
77 .El
78 .Pp
79 The identifiers and keys associated with these System V IPC objects can be
80 determined by using
81 .Xr ipcs 1
82 .
83 .Sh SEE ALSO
84 .Xr ipcs 1