posix man page for ipcrm

IPCRM(1P)						     POSIX Programmer's Manual							 IPCRM(1P)

PROLOG
       This  manual page is part of the POSIX Programmer's Manual.  The Linux implementation of this interface may differ (consult the correspond-
       ing Linux manual page for details of Linux behavior), or the interface may not be implemented on Linux.

NAME
       ipcrm -- remove an XSI message queue, semaphore set, or shared memory segment identifier

SYNOPSIS
       ipcrm [-q msgid|-Q msgkey|-s semid|-S semkey|-m shmid|-M shmkey]...

DESCRIPTION
       The ipcrm utility shall remove zero or more message queues, semaphore sets, or  shared  memory  segments.  The  interprocess  communication
       facilities to be removed are specified by the options.

       Only  a user with appropriate privileges shall be allowed to remove an interprocess communication facility that was not created by or owned
       by the user invoking ipcrm.

OPTIONS
       The ipcrm utility shall conform to the Base Definitions volume of POSIX.1-2008, Section 12.2, Utility Syntax Guidelines.

       The following options shall be supported:

       -q msgid  Remove the message queue identifier msgid from the system and destroy the message queue and data structure associated with it.

       -m shmid  Remove the shared memory identifier shmid from the system. The shared memory segment and data structure associated with it  shall
		 be destroyed after the last detach.

       -s semid  Remove the semaphore identifier semid from the system and destroy the set of semaphores and data structure associated with it.

       -Q msgkey Remove  the  message  queue identifier, created with key msgkey, from the system and destroy the message queue and data structure
		 associated with it.

       -M shmkey Remove the shared memory identifier, created with key shmkey, from the system. The shared memory segment and data structure asso-
		 ciated with it shall be destroyed after the last detach.

       -S semkey Remove  the  semaphore  identifier, created with key semkey, from the system and destroy the set of semaphores and data structure
		 associated with it.

OPERANDS
       None.

STDIN
       Not used.

INPUT FILES
       None.

ENVIRONMENT VARIABLES
       The following environment variables shall affect the execution of ipcrm:

       LANG	 Provide a default value for the internationalization variables that are unset or  null.  (See	the  Base  Definitions	volume	of
		 POSIX.1-2008,	Section 8.2, Internationalization Variables for the precedence of internationalization variables used to determine
		 the values of locale categories.)

       LC_ALL	 If set to a non-empty string value, override the values of all the other internationalization variables.

       LC_CTYPE  Determine the locale for the interpretation of sequences of bytes of text data as characters (for example, single-byte as opposed
		 to multi-byte characters in arguments).

       LC_MESSAGES
		 Determine the locale that should be used to affect the format and contents of diagnostic messages written to standard error.

       NLSPATH	 Determine the location of message catalogs for the processing of LC_MESSAGES.

ASYNCHRONOUS EVENTS
       Default.

STDOUT
       Not used.

STDERR
       The standard error shall be used only for diagnostic messages.

OUTPUT FILES
       None.

EXTENDED DESCRIPTION
       None.

EXIT STATUS
       The following exit values shall be returned:

	0    Successful completion.

       >0    An error occurred.

CONSEQUENCES OF ERRORS
       Default.

       The following sections are informative.

APPLICATION USAGE
       None.

EXAMPLES
       None.

RATIONALE
       None.

FUTURE DIRECTIONS
       None.

SEE ALSO
       ipcs

       The Base Definitions volume of POSIX.1-2008, Chapter 8, Environment Variables, Section 12.2, Utility Syntax Guidelines

       The System Interfaces volume of POSIX.1-2008, msgctl(), semctl(), shmctl()

COPYRIGHT
       Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2013 Edition, Standard for Information Technol-
       ogy -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 7, Copyright (C)  2013  by	the  Institute	of
       Electrical and Electronics Engineers, Inc and The Open Group.  (This is POSIX.1-2008 with the 2013 Technical Corrigendum 1 applied.) In the
       event of any discrepancy between this version and the original IEEE and The Open Group Standard, the original IEEE and The Open Group Stan-
       dard is the referee document. The original Standard can be obtained online at http://www.unix.org/online.html .

       Any typographical or formatting errors that appear in this page are most likely to have been introduced during the conversion of the source
       files to man page format. To report such errors, see https://www.kernel.org/doc/man-pages/reporting_bugs.html .

IEEE
/The Open Group						       2013								 IPCRM(1P)