IPCRM(1) BSD General Commands Manual IPCRM(1)NAMEipcrm — remove the specified message queues, semaphore sets, and shared
memory segments
SYNOPSISipcrm [-M shmkey] [-m shmid] [-Q msgkey] [-q msqid] [-S semkey]
[-s semid] ...
DESCRIPTIONipcrm 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 sys‐
tem.
-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 sys‐
tem.
-s semid
Removes the semaphore set associated with ID semid from the sys‐
tem.
The identifiers and keys associated with these System V IPC objects can
be determined by using ipcs(1).
RESTRICTIONS
On Cygwin, System V IPC only works when the cygserver service is running
and the CYGWIN environment variable for the client contains the word
"server". See /usr/share/doc/Cygwin/cygserver.README and the Cygwin
user's guide.
SEE ALSOipcs(1)STANDARDS
The ipcrm utility is compliant with the X/Open Portability Guide Issue 4
(“XPG4”) specification.
BSD May 1, 2024 BSD