IPCRM(1) IPCRM(1) (NAME) ipcrm - IPC (SYNOPSIS) ipcrm [options] ipcrm [shm|msg|sem] ID ... (DESCRIPTION) ipcrm (IPC) POSIX System V . (superuser) . IPC POSIX System V : . ( IPC ). (shmdt(2)) . . IPC . SUS ( ). ( '0x' '0X') ( '0') . shmctl(2) shm_unlink(3) msgctl(2) mq_unlink(3) semctl(2) sem_unlink(3) . lsipc(1) ipcs(1) . (OPTIONS) -a, --all [shm] [pshm] [msg] [pmsg] [sem] [psem] . . ! -a . . -M, --shmem-key shmkey shmkey (detach). -m, --shmem-id shmid shmid (detach). --posix-shmem name POSIX name. -Q, --queue-key msgkey msgkey. -q, --queue-id msgid msgid. --posix-mqueue name POSIX name. -S, --semaphore-key semkey semkey. -s, --semaphore-id semid semid. --posix-semaphore name POSIX name. -h, --help . -V, --version . (NOTES) ipcrm (SYNOPSIS) . *nix ipcrm ( ) . . (SEE ALSO) ipcmk(1), ipcs(1), lsipc(1), msgctl(2), mq_unlink(3), msgget(2), semctl(2), semget(2), sem_unlink(3), shmctl(2), shmdt(2), shmget(2), shm_unlink(3), ftok(3), sysvipc(7) (REPORTING BUGS) . (AVAILABILITY) ipcrm util-linux . . util-linux 2.41.5 2026-06-16 IPCRM(1)