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ipcrm -- Remove an interprocess-communication memory item

ipcrm [-mqs id] [-MQS key]

Options:
     m id      Remove the shared memory segment with an identifier of id.
     q id      Remove the message queue with an identifier of id.
     s id      Remove the semaphore set with an identifier of id.
     M key     Remove the shared memory segment with a key of key.
     Q key     Remove the message queue with a key of key.
     S key     Remove the semaphore set with a key of key.