IPCS(1) IPCS(1) ipcs - IPC ipcs [] ipcs System V. , : ', . -i, --id . : -m, -q -s. -h, --help . -V, --version . -m, --shmems ' . -q, --queues . -s, --semaphores . -a, --all ( ). : , . -c, --creator . -l, --limits . -p, --pid PID . -t, --time . , , msgsnd(2) msgrcv(2) , shmat(2) shmdt(2) ' semop(2) . -u, --summary . -l (--limits). -b, --bytes Print sizes in bytes rather than in human-readable form. By default, sizes are shown in units that are powers of 1024 bytes. The formal abbreviations for these units (KiB, MiB, GiB, ...) are further shortened to just their first letter: K, M, G, .... --human . Linux ipcs POSIX ipcs. Linux POSIX -a, -b -o, -l -u, POSIX. -a, -b, -o, -l -u. ipcs IPC /proc/sysvipc. util-linux 2.23, : IPC_STAT msgctl(2), semctl(2) shmctl(2). util-linux, /proc. IPC_STAT , IPC, . Krishna Balasubramanian ipcmk(1), ipcrm(1), msgrcv(2), msgsnd(2), semget(2), semop(2), shmat(2), shmdt(2), shmget(2), sysvipc(7) ipcs util-linux, Linux . util-linux 2.42.3 2026-09-02 IPCS(1)