1LSIPC(1) User Commands LSIPC(1)
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6 lsipc - show information on IPC facilities currently employed in the
7 system
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10 lsipc [options]
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13 lsipc shows information on the inter-process communication facilities
14 for which the calling process has read access.
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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
20 resource options: -m, -q or -s. It is possible to override the
21 default output format for this option with the --list, --raw,
22 --json or --export option.
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24 -g, --global
25 Show system-wide usage and limits of IPC resources. This option
26 may be combined with one of the three resource options: -m, -q
27 or -s. 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 Display version information 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 Output data in the format of NAME=VALUE.
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52 -l, --list
53 Use the list output format. This is the default, except when
54 --id is used.
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56 -n, --newline
57 Display each piece of information on a separate line.
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59 --noheadings
60 Do not print a header line.
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62 --notruncate
63 Don't truncate output.
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65 -o, --output list
66 Specify which output columns to print. Use --help to get a list
67 of all supported columns.
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69 -p, --pid
70 Show PIDs of creator and last operator.
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72 -r, --raw
73 Raw output (no columnation).
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75 -t, --time
76 Write time information. The time of the last control operation
77 that changed the access permissions for all facilities, the time
78 of the last msgsnd() and msgrcv() operations on message queues,
79 the time of the last shmat() and shmdt() operations on shared
80 memory, and the time of the last semop() operation on sema‐
81 phores.
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83 --time-format type
84 Display dates in short, full or iso format. The default is
85 short, this time format is designed to be space efficient and
86 human readable.
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90 0 if OK,
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92 1 if incorrect arguments specified,
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94 2 if a serious error occurs.
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97 ipcrm(1), ipcmk(1), msgrcv(2), msgsnd(2), semget(2), semop(2),
98 shmat(2), shmdt(2), shmget(2)
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101 The lsipc utility is inspired by the ipcs utility.
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104 Ondrej Oprala ⟨ooprala@redhat.com⟩
105 Karel Zak ⟨kzak@redhat.com⟩
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109 The lsipc command is part of the util-linux package and is available
110 from Linux Kernel Archive ⟨ftp://ftp.kernel.org/pub/linux/utils/util-
111 linux/⟩.
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115util-linux November 2015 LSIPC(1)