ipcs — Show information about the usage of XSI IPC facilities: shared memory segments, message queues, and semaphore arrays.
# source: tldr · verified

Examples:
  # Show information about all active IPC facilities [GNU]
    $ ipcs
  # Show information about active shared memory segments, message queues or semaphore sets [GNU]
    $ ipcs --shmems|--queues|--semaphores
  # Show full details on the resource with a specific ID [GNU]
    $ ipcs --shmems|--queues|--semaphores [-i|--id] resource_id

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