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/⟩.