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ipcrm(1)							     ipcrm(1)



NAME

  ipcrm	- Removes message queue, semaphore set,	or shared memory identifiers

SYNOPSIS

  ipcrm	[-m shared_memory] [-M shared_memory_key] [-q message_queue] [-Q
  message_key] [-s semaphore_ID] [-S semaphore_key]

  The ipcrm command removes one	or more	message	queue, semaphore set, or
  shared memory	identifiers.

STANDARDS

  Interfaces documented	on this	reference page conform to industry standards
  as follows:

  ipcrm: XCU5.0

  Refer	to the standards(5) reference page for more information	about indus-
  try standards	and associated tags.

OPTIONS

  -m shared_memory
      Removes the shared memory	identifier shared_memory. The shared memory
      segment and data structure associated with shared_memory are also
      removed after the	last detach operation.

  -M shared_memory_key
      Removes the shared memory	identifier, created with key
      shared_memory_key. The shared memory segment and data structure associ-
      ated with	it are also removed after the last detach.

  -q message_queue
      Removes the message queue	identifier message_queue and the message
      queue and	data structure associated with it.

  -Q message_key
      Removes the message queue	identifier, created with key message_key, and
      the message queue	and data structure associated with it.

  -s semaphore_ID
      Removes the semaphore identifier semaphore_ID and	the set	of semaphores
      and data structure associated with it.

  -S semaphore_key
      Removes the semaphore identifier,	created	with key semaphore_key,	and
      the set of semaphores and	data structure associated with it.





DESCRIPTION

  The details of the remove operations are described in	the Section 2 refer-
  ence pages for msgctl(), shmctl(), and semctl(). The identifiers and keys
  can be found by using	the ipcs command.

EXAMPLES

  To remove the	shared memory segment associated with shared memory identif-
  ier 18602, enter:

       ipcrm -m	18602

SEE ALSO

  Commands:  ipcs(1)

  Functions:  msgctl(2), msgget(2), semctl(2), semget(2), semop(2),
  shmctl(2), shmget(2)