Content-type: text/html
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.
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)