IPCS("1") manual page
Table of Contents
ipcs - show information on IPC facilities
ipcs [options]
ipcs
shows information on the inter-process communication facilities for which
the calling process has read access. By default it shows information about
all three resources: shared memory segments, message queues, and semaphore
arrays.
- -i, --id id
- Show full details on just the one resource element
identified by id. This option needs to be combined with one of the three
resource options: -m, -q or -s.
- -h, --help
- Display help text and exit.
- -V, --version
- Display version information and exit.
- -m, --shmems
- Write information
about active shared memory segments.
- -q, --queues
- Write information about active
message queues.
- -s, --semaphores
- Write information about active semaphore sets.
- -a, --all
- Write information about all three resources (default).
Of
these options only one takes effect: the last one specified.
- -c, --creator
- Show creator and owner.
- -l, --limits
- Show resource limits.
- -p, --pid
- Show PIDs
of creator and last operator.
- -t, --time
- Write time information. The time of
the last control operation that changed the access permissions for all
facilities, the time of the last msgsnd() and msgrcv() operations on message
queues, the time of the last shmat() and shmdt() operations on shared memory,
and the time of the last semop() operation on semaphores.
- -u, --summary
- Show
status summary.
These affect only the -l (--limits) option.
- -b,
--bytes
- Print sizes in bytes.
- --human
- Print sizes in human-readable format.
ipcrm(1)
, ipcmk(1)
, msgrcv(2)
, msgsnd(2)
, semget(2)
, semop(2)
, shmat(2)
,
shmdt(2)
, shmget(2)
The Linux ipcs utility is not fully compatible
to the POSIX ipcs utility. The Linux version does not support the POSIX
-a, -b and -o options, but does support the -l and -u options not defined by
POSIX. A portable application shall not use the -a, -b, -o, -l, and -u options.
Krishna Balasubramanian
The ipcs command is part of
the util-linux package and is available from Linux Kernel Archive
Table of Contents
![[Go to CFHT Home Page]](/images/cfht-icon.gif){kind=icon}
Man Pages 
Back to Software Index 
Manpage Top Level