# phpman > info > lsipc

[LSIPC(1)](https://www.chedong.com/phpMan.php/man/LSIPC/1/markdown)                         User Commands                        [LSIPC(1)](https://www.chedong.com/phpMan.php/man/LSIPC/1/markdown)

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

SYNOPSIS
       lsipc [options]

DESCRIPTION
       lsipc shows information on the System V 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. It is possible to override the default
           output format for this option with the --list, --raw, --json or
           --export option.

       -g, --global
           Show system-wide usage and limits of IPC resources. 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 formatting
       -c, --creator
           Show creator and owner.

       -e, --export
           Produce output in the form of key="value" pairs. All potentially
           unsafe value characters are hex-escaped (\x<code>).

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

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

       -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.

       -b, --bytes
           Print size in bytes rather than in human readable format.

       -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(2)](https://www.chedong.com/phpMan.php/man/msgsnd/2/markdown) and [msgrcv(2)](https://www.chedong.com/phpMan.php/man/msgrcv/2/markdown) operations on message queues, the time
           of the last [shmat(2)](https://www.chedong.com/phpMan.php/man/shmat/2/markdown) and [shmdt(2)](https://www.chedong.com/phpMan.php/man/shmdt/2/markdown) operations on shared memory, and
           the time of the last [semop(2)](https://www.chedong.com/phpMan.php/man/semop/2/markdown) 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.

       -P, --numeric-perms
           Print numeric permissions in PERMS column.

EXIT STATUS
       0
           if OK,

       1
           if incorrect arguments specified,

       2
           if a serious error occurs.

HISTORY
       The lsipc utility is inspired by the [ipcs(1)](https://www.chedong.com/phpMan.php/man/ipcs/1/markdown) utility.

AUTHORS
       Ondrej Oprala <<ooprala@redhat.com>>, Karel Zak <<kzak@redhat.com>>

SEE ALSO
       [ipcmk(1)](https://www.chedong.com/phpMan.php/man/ipcmk/1/markdown), [ipcrm(1)](https://www.chedong.com/phpMan.php/man/ipcrm/1/markdown), [msgrcv(2)](https://www.chedong.com/phpMan.php/man/msgrcv/2/markdown), [msgsnd(2)](https://www.chedong.com/phpMan.php/man/msgsnd/2/markdown), [semget(2)](https://www.chedong.com/phpMan.php/man/semget/2/markdown), [semop(2)](https://www.chedong.com/phpMan.php/man/semop/2/markdown),
       [shmat(2)](https://www.chedong.com/phpMan.php/man/shmat/2/markdown), [shmdt(2)](https://www.chedong.com/phpMan.php/man/shmdt/2/markdown), [shmget(2)](https://www.chedong.com/phpMan.php/man/shmget/2/markdown), [sysvipc(7)](https://www.chedong.com/phpMan.php/man/sysvipc/7/markdown)

REPORTING BUGS
       For bug reports, use the issue tracker at
       <https://github.com/karelzak/util-linux/issues>.

AVAILABILITY
       The lsipc command is part of the util-linux package which can be
       downloaded from Linux Kernel Archive
       <<https://www.kernel.org/pub/linux/utils/util-linux/>>.

util-linux 2.37.2                 2026-03-06                          [LSIPC(1)](https://www.chedong.com/phpMan.php/man/LSIPC/1/markdown)