1LSIPC(1)                         User Commands                        LSIPC(1)
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NAME

6       lsipc - show information on IPC facilities currently employed in the
7       system
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SYNOPSIS

10       lsipc [options]
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DESCRIPTION

13       lsipc shows information on the System V inter-process communication
14       facilities for which the calling process has read access.
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OPTIONS

17       -i, --id id
18           Show full details on just the one resource element identified by
19           id. This option needs to be combined with one of the three resource
20           options: -m, -q or -s. It is possible to override the default
21           output format for this option with the --list, --raw, --json or
22           --export option.
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24       -g, --global
25           Show system-wide usage and limits of IPC resources. This option may
26           be combined with one of the three resource options: -m, -q or -s.
27           The default is to show information about all resources.
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29       -h, --help
30           Display help text and exit.
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32       -V, --version
33           Print version and exit.
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35   Resource options
36       -m, --shmems
37           Write information about active shared memory segments.
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39       -q, --queues
40           Write information about active message queues.
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42       -s, --semaphores
43           Write information about active semaphore sets.
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45   Output formatting
46       -c, --creator
47           Show creator and owner.
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49       -e, --export
50           Produce output in the form of key="value" pairs. All potentially
51           unsafe value characters are hex-escaped (\x<code>). See also option
52           --shell.
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54       -J, --json
55           Use the JSON output format.
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57       -l, --list
58           Use the list output format. This is the default, except when --id
59           is used.
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61       -n, --newline
62           Display each piece of information on a separate line.
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64       --noheadings
65           Do not print a header line.
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67       --notruncate
68           Don’t truncate output.
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70       -o, --output list
71           Specify which output columns to print. Use --help to get a list of
72           all supported columns.
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74       -b, --bytes
75           Print size in bytes rather than in human readable format.
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77       -r, --raw
78           Raw output (no columnation).
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80       -t, --time
81           Write time information. The time of the last control operation that
82           changed the access permissions for all facilities, the time of the
83           last msgsnd(2) and msgrcv(2) operations on message queues, the time
84           of the last shmat(2) and shmdt(2) operations on shared memory, and
85           the time of the last semop(2) operation on semaphores.
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87       --time-format type
88           Display dates in short, full or iso format. The default is short,
89           this time format is designed to be space efficient and human
90           readable.
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92       -P, --numeric-perms
93           Print numeric permissions in PERMS column.
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95       -y, --shell
96           The column name will be modified to contain only characters allowed
97           for shell variable identifiers. This is usable, for example, with
98           --export. Note that this feature has been automatically enabled for
99           --export in version 2.37, but due to compatibility issues, now it’s
100           necessary to request this behavior by --shell.
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EXIT STATUS

103       0
104           if OK,
105
106       1
107           if incorrect arguments specified,
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109       2
110           if a serious error occurs.
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HISTORY

113       The lsipc utility is inspired by the ipcs(1) utility.
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AUTHORS

116       Ondrej Oprala <ooprala@redhat.com>, Karel Zak <kzak@redhat.com>
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SEE ALSO

119       ipcmk(1), ipcrm(1), msgrcv(2), msgsnd(2), semget(2), semop(2),
120       shmat(2), shmdt(2), shmget(2), sysvipc(7)
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REPORTING BUGS

123       For bug reports, use the issue tracker at
124       https://github.com/util-linux/util-linux/issues.
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AVAILABILITY

127       The lsipc command is part of the util-linux package which can be
128       downloaded from Linux Kernel Archive
129       <https://www.kernel.org/pub/linux/utils/util-linux/>.
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133util-linux 2.39.2                 2023-06-14                          LSIPC(1)
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