NAME
ipcrm —
remove the specified message
queues, semaphore sets, and shared memory segments
SYNOPSIS
ipcrm |
[-M
shmkey]
[-m shmid]
[-Q
msgkey]
[-q msqid]
[-S
semkey]
[-s semid]
... |
DESCRIPTION
ipcrm 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:
-
-
- -M
shmkey
- Mark the shared memory segment associated with key
shmkey for removal. This marked segment will be
destroyed after the last detach.
-
-
- -m
shmid
- Mark the shared memory segment associated with ID
shmid for removal. This marked segment will be
destroyed after the last detach.
-
-
- -Q
msgkey
- Remove the message queue associated with key
msgkey from the system.
-
-
- -q
msqid
- Remove the message queue associated with the ID
msqid from the system.
-
-
- -S
semkey
- Remove the semaphore set associated with key
semkey from the system.
-
-
- -s
semid
- Removes the semaphore set associated with ID
semid from the system.
If the
id or
key argument is
“all” then all entries of the appropriate type are removed.
The identifiers and keys associated with these System V IPC objects can be
determined by using
ipcs(1).
SEE ALSO
ipcs(1),
shmat(2),
shmctl(2),
shmdt(2),
shmget(2)