ipcrm(1) General Commands Manual 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 industry standards and associated tags.
OPTIONS
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 seg-
ment 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 mes-
sage queue and data structure associated with it. Removes the semaphore identifier semaphore_ID and the set of semaphores and data struc-
ture associated with it. 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)
ipcrm(1)