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 options are as follows:
- -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.
The identifiers and keys associated with these System V IPC objects can be determined by using ipcs(1).
EXIT STATUS
The ipcrm utility exits 0 on success, and >0 if an error occurs.
SEE ALSO
STANDARDS
The ipcrm utility is compliant with the X/Open System Interfaces option of the IEEE Std 1003.1-2008 (“POSIX.1”) specification.