lsipc

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 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
              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 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.

SEE ALSO
       ipcmk(1), ipcrm(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 ⟨ooprala@redhat.com⟩
       Karel Zak ⟨kzak@redhat.com⟩


AVAILABILITY
       The lsipc command is part of the util-linux package and is available
       from Linux Kernel Archive ⟨https://www.kernel.org/pub/linux/utils/util-
       linux/⟩.



util-linux                       November 2015                        LSIPC(1)