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lsipc - show information on IPC facilities currently employed in the system


lsipc [options]


lsipc shows information on the inter-process communication facilities for which the
calling process has read access.


-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. The
default --id output format is possible to override by the --list --raw --json or
--export options.

-g, --global
Show system-wide usage and limits for a single IPC type. This option may be
combined with one of the three resource options: -m, -q or -s. The default is to
show information about all resources.

-h, --help
Display help text and exit.

-V, --version
Display version information and exit.

Resource options
-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.

Output formats
-c, --creator
Show creator and owner.

-e, --export
Output data in the format of NAME=VALUE.

-J, --json
Use the JSON output format.

-l, --list
Use the list output format. This is the default except for --id.

-n, --newline
Display each piece of information on a separate line.

Do not print a header line.

Don't truncate output.

-o, --output list
Specify which output columns to print. Use --help to get a list of all supported

-p, --pid
Show PIDs of creator and last operator.

-r, --raw
Raw output (no columnation).

-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.

--time-format type
Display dates in short, full or iso format. The default is short, this time format
is designed to be space efficient and human readable.


0 if OK,

1 if incorrect arguments specified,

2 if a serious error occurs.

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