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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.

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
      associated 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
  reference 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
  identifier 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)