1IPCRM(1P) POSIX Programmer's Manual IPCRM(1P)
2
6 This manual page is part of the POSIX Programmer's Manual. The Linux
7 implementation of this interface may differ (consult the corresponding
8 Linux manual page for details of Linux behavior), or the interface may
9 not be implemented on Linux.
10
13 ipcrm — remove an XSI message queue, semaphore set, or shared memory
14 segment identifier
15
17 ipcrm [−q msgid|−Q msgkey|−s semid|−S semkey|−m shmid|−M shmkey]...
18
20 The ipcrm utility shall remove zero or more message queues, semaphore
21 sets, or shared memory segments. The interprocess communication facili‐
22 ties to be removed are specified by the options.
23 Only a user with appropriate privileges shall be allowed to remove an
25 interprocess communication facility that was not created by or owned by
26 the user invoking ipcrm.
27
29 The ipcrm utility shall conform to the Base Definitions volume of
30 POSIX.1‐2008, Section 12.2, Utility Syntax Guidelines.
31 The following options shall be supported:
33 −q msgid Remove the message queue identifier msgid from the system and
35 destroy the message queue and data structure associated with
36 it.
37 −m shmid Remove the shared memory identifier shmid from the system.
39 The shared memory segment and data structure associated with
40 it shall be destroyed after the last detach.
41 −s semid Remove the semaphore identifier semid from the system and
43 destroy the set of semaphores and data structure associated
44 with it.
45 −Q msgkey Remove the message queue identifier, created with key msgkey,
47 from the system and destroy the message queue and data struc‐
48 ture associated with it.
49 −M shmkey Remove the shared memory identifier, created with key shmkey,
51 from the system. The shared memory segment and data structure
52 associated with it shall be destroyed after the last detach.
53 −S semkey Remove the semaphore identifier, created with key semkey,
55 from the system and destroy the set of semaphores and data
56 structure associated with it.
57
59 None.
60
62 Not used.
63
65 None.
66
68 The following environment variables shall affect the execution of
69 ipcrm:
70 LANG Provide a default value for the internationalization vari‐
72 ables that are unset or null. (See the Base Definitions vol‐
73 ume of POSIX.1‐2008, Section 8.2, Internationalization Vari‐
74 ables for the precedence of internationalization variables
75 used to determine the values of locale categories.)
76 LC_ALL If set to a non-empty string value, override the values of
78 all the other internationalization variables.
79 LC_CTYPE Determine the locale for the interpretation of sequences of
81 bytes of text data as characters (for example, single-byte as
82 opposed to multi-byte characters in arguments).
83 LC_MESSAGES
85 Determine the locale that should be used to affect the format
86 and contents of diagnostic messages written to standard
87 error.
88 NLSPATH Determine the location of message catalogs for the processing
90 of LC_MESSAGES.
91
93 Default.
94
96 Not used.
97
99 The standard error shall be used only for diagnostic messages.
100
102 None.
103
105 None.
106
108 The following exit values shall be returned:
109 0 Successful completion.
111 >0 An error occurred.
113
115 Default.
116 The following sections are informative.
118
120 None.
121
123 None.
124
126 None.
127
129 None.
130
132 ipcs
133 The Base Definitions volume of POSIX.1‐2008, Chapter 8, Environment
135 Variables, Section 12.2, Utility Syntax Guidelines
136 The System Interfaces volume of POSIX.1‐2008, msgctl(), semctl(), shm‐
138 ctl()
139
141 Portions of this text are reprinted and reproduced in electronic form
142 from IEEE Std 1003.1, 2013 Edition, Standard for Information Technology
143 -- Portable Operating System Interface (POSIX), The Open Group Base
144 Specifications Issue 7, Copyright (C) 2013 by the Institute of Electri‐
145 cal and Electronics Engineers, Inc and The Open Group. (This is
146 POSIX.1-2008 with the 2013 Technical Corrigendum 1 applied.) In the
147 event of any discrepancy between this version and the original IEEE and
148 The Open Group Standard, the original IEEE and The Open Group Standard
149 is the referee document. The original Standard can be obtained online
150 at http://www.unix.org/online.html .
151 Any typographical or formatting errors that appear in this page are
153 most likely to have been introduced during the conversion of the source
154 files to man page format. To report such errors, see https://www.ker‐
155 nel.org/doc/man-pages/reporting_bugs.html .
156IEEE/The Open Group 2013 IPCRM(1P)