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| Chapter 2 UNIX Commands |

## ipcs

    ipcs [options]

Print data about active interprocess communication facilities.

### Options

-m

  Report on active shared memory segments.

-q

  Report on active message queues.

-s

  Report on active semaphores.

With the -m, -q, or -s options, only the specified interprocess facility is reported on. Otherwise information about all three is printed.

-a

  Use all of the print options (short for -bcopt).

-b

  Report maximum allowed number of message bytes, segment sizes, and number of semaphores.

-c

  Report the creator's login name and group.

-C`file`

  Read status from `file` instead of from /dev/kmem.

-N`list`

  Use the argument for the named `list` instead of /stand/unix.

-o

  Report outstanding usage.

-p

  Report process numbers.

-t

  Report time information.

Reference: ipcrm |  | Reference: ismpx