ipcrm - Removes message queue, semaphore set, or shared
memory identifiers
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.
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 industry standards and associated tags.
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.
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. Removes the message queue identifier message_queue
and the message queue and data structure associated
with it. Removes the message queue identifier,
created with key message_key, and the message queue and
data structure associated with it. Removes the semaphore
identifier semaphore_ID and the set of semaphores and data
structure associated with it. Removes the semaphore identifier,
created with key semaphore_key, and the set of
semaphores and data structure associated with it.
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.
To remove the shared memory segment associated with shared
memory identifier 18602, enter: ipcrm -m 18602
Commands: ipcs(1)
Functions: msgctl(2), msgget(2), semctl(2), semget(2),
semop(2), shmctl(2), shmget(2)
ipcrm(1)
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