ipcrm(1)


ipcrm -- remove a message queue, semaphore set, or shared memory ID

Synopsis

ipcrm [options]

Description

ipcrm removes one or more messages, semaphores, or shared memory identifiers. The identifiers are specified by the following options:

-q msqid
Remove the message queue identifier msqid from the system and destroy the message queue and data structure associated with it.

-m shmid
Remove the shared memory identifier shmid from the system. The shared memory segment and data structure associated with it are destroyed after the last detach.

-s semid
Remove the semaphore identifier semid from the system and destroy the set of semaphores and data structure associated with it.

-Q msgkey
Remove the message queue identifier, created with key msgkey, from the system and destroy the message queue and data structure associated with it.

-M shmkey
Removes the shared memory identifier, created with key shmkey, from the system. The shared memory segment and data structure associated with it are destroyed after the last detach.

-S semkey
Remove the semaphore identifier, created with key semkey, from the system and destroy the set of semaphores and data structure associated with it.
The details of the removes are described in msgctl(2), shmctl(2), and semctl(2). Use the ipcs command to find the identifiers and keys.

References

ipcs(1), msgctl(2), msgget(2), msgop(2), semctl(2), semget(2), semop(2), shmctl(2), shmget(2), shmop(2)
30 January 1998
© 1998 The Santa Cruz Operation, Inc. All rights reserved.