ipcs

Show information about the usage of System V IPC facilities: shared memory segments, message queues, and semaphore arrays. See also: lsipc for a more flexible tool, ipcmk for creating IPC facilities, and ipcrm for deleting them. More information: https://manned.org/ipcs.

• Show information about all active IPC facilities:

ipcs

• Show information about active shared [m]emory segments, message [q]ueues or [s]empahore sets:

ipcs –shmems|–queues|–semaphores

• Show full details on the resource with a specific [i]D:

ipcs –shmems|–queues|–semaphores --id resource_id

• Show [l]imits in [b]ytes or in a human-readable format:

ipcs --limits –bytes|–human

• Show s[u]mmary about current usage:

ipcs --summary

• Show [c]reator's and owner's UIDs and PIDs for all IPC facilities:

ipcs --creator

• Show the [p]ID of the last operators for all IPC facilities:

ipcs --pid

• Show last access [t]imes for all IPC facilities:

ipcs --time