LSIPC(1) - phpMan

LSIPC(1)                                  User Commands                                  LSIPC(1)

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) and msgrcv(2)
           operations on message queues, the time of the last shmat(2) and shmdt(2) operations on
           shared memory, and the time of the last semop(2) 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) utility.

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

SEE ALSO
       ipcmk(1), ipcrm(1), msgrcv(2), msgsnd(2), semget(2), semop(2), shmat(2), shmdt(2),
       shmget(2), sysvipc(7)

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                           2024-04-09                                   LSIPC(1)

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