NAME

ipcrm — remove the specified message queues, semaphore sets, and shared segments

SYNOPSIS

DESCRIPTION

The ipcrm utility removes the specified message queues, semaphores and shared memory segments. These System V IPC objects can be specified by their creation ID or any associated key.

The following options are used to specify which IPC objects will be removed. Any number and combination of these options can be used:

-q msqid

Remove the message queue associated with the ID msqid from the system.

-m shmid

Mark the shared memory segment associated with ID shmid for removal. This marked segment will be destroyed after the last detach.

-s semid

Remove the semaphore set associated with ID semid from the system.

-Q msgkey

Remove the message queue associated with key msgkey from the system.

-M shmkey

Mark the shared memory segment associated with key shmkey for removal. This marked segment will be destroyed after the last detach.

-S semkey

Remove the semaphore set associated with key semkey from the system.

The identifiers and keys associated with these System V IPC objects can be determined by using ipcs(1).

SEE ALSO

ipcs(1)

AUTHORS

The original author was Adam Glass. The wiping of all System V IPC objects was thought up by
Callum Gibson and extended and implemented by
Edwin Groothuis.