misc-utils/lsclocks.1.adoc

   1 //po4a: entry man manual
   2 = lsclocks(1)
   3 :doctype: manpage
   4 :man manual: User Commands
   5 :man source: util-linux {release-version}
   6 :page-layout: base
   7 :command: lsclocks
   8
   9 == NAME
  10
  11 lsclocks - display system clocks
  12
  13 == SYNOPSIS
  14
  15 *lsclocks* [option]
  16
  17 == DESCRIPTION
  18
  19 *lsclocks* is a simple command to display system clocks.
  20
  21 It allows to display information like current time and resolutionof clocks like
  22 CLOCK_MONOTONIC, CLOCK_REALTIME and CLOCK_BOOTTIME.
  23
  24 == OPTIONS
  25
  26 *-J*, *--json*::
  27 Use JSON output format.
  28
  29 *-n*, *--noheadings*::
  30 Don't print headings.
  31
  32 *-o*, *--output* _list_::
  33 Specify which output columns to print. See the *OUTPUT COLUMNS*
  34 section for details of available columns.
  35
  36 *--output-all*::
  37 Output all columns.
  38
  39 *-r*, *--raw*::
  40 Use raw output format.
  41
  42 *-r*, *--time* _clock_
  43 Show current time of one specific clocks.
  44
  45 *--no-discover-dynamic*
  46 Do not try to discover dynamic clocks.
  47
  48 *-d*, *--dynamic-clock* _path_
  49 Also display specified dynamic clock.
  50 Can be specified multiple times.
  51
  52 *--no-discover-rtc*
  53 Do not try to discover RTCs.
  54
  55 *-x*, *--rtc* _path_
  56 Also display specified RTC.
  57 Can be specified multiple times.
  58
  59 *-c*, *--cpu-clock* _pid_
  60 Also display CPU clock of specified process.
  61 Can be specified multiple times.
  62
  63 include::man-common/help-version.adoc[]
  64
  65 == OUTPUT COLUMNS
  66
  67 Each column has a type. Types are surround by < and >.
  68
  69 TYPE <``string``>::
  70 Clock type.
  71
  72 ID <``number``>::
  73 Numeric clock ID.
  74
  75 CLOCK <``string``>::
  76 Name in the form *CLOCK_*
  77
  78 NAME <``string``>::
  79 Shorter, easier to read name.
  80
  81 TIME <``number``>::
  82 Current clock timestamp as returned by *clock_gettime()*.
  83
  84 ISO_TIME <``string``>::
  85 ISO8601 formatted version of *TIME*.
  86
  87 RESOL_RAW <``number``>::
  88 Clock resolution as returned by *clock_getres()*.
  89
  90 RESOL <``number``>::
  91 Human readable version of *RESOL_RAW*.
  92
  93 REL_TIME <``string``>::
  94 *TIME* time formatted as time range.
  95
  96 NS_OFFSET <``number``>::
  97 Offset of the current namespace to the parent namespace as read from */proc/self/timens_offsets*.
  98
  99
 100 == AUTHORS
 101
 102 mailto:thomas@t-8ch.de[Thomas Weißschuh]
 103
 104 == SEE ALSO
 105
 106 *clock_getres*(2) *clock_gettime*(2)
 107
 108 include::man-common/bugreports.adoc[]
 109
 110 include::man-common/footer.adoc[]
 111
 112 ifdef::translation[]
 113 include::man-common/translation.adoc[]
 114 endif::[]