LSIPC(1)                         User Commands                        LSIPC(1)

       lsipc  -  show  information on IPC facilities currently employed in the

       lsipc [options]

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

       -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  re-
              source  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.

              Do not print a header line.

              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

       --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.

       0      if OK,

       1      if incorrect arguments specified,

       2      if a serious error occurs.

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

       The lsipc utility is inspired by the ipcs utility.

       Ondrej Oprala <>
       Karel Zak <>

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

util-linux                       November 2015                        LSIPC(1)
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