lsipc (1)

Leading comments

Copyright 2015 Ondrej Oprala(ooprala@redhat.com)
May be distributed under the GNU General Public License

(The comments found at the beginning of the groff file "man1/lsipc.1".)

NAME

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

SYNOPSIS

lsipc [options]

DESCRIPTION

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

OPTIONS

-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.

--noheadings

Do not print a header line.

--notruncate

Don't truncate output.

-o, --output list

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

-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.

EXIT STATUS

0

if OK,

1

if incorrect arguments specified,

2

if a serious error occurs.

SEE ALSO

ipcrm(1), ipcmk(1), msgrcv(2), msgsnd(2), semget(2), semop(2), shmat(2), shmdt(2), shmget(2)

HISTORY

The lsipc utility is inspired by the ipcs utility.

AUTHORS

Ondrej Oprala
Karel Zak

AVAILABILITY

The lsipc command is part of the util-linux package and is available from Linux Kernel Archive