misc-utils/cal.1

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  35 .\"     @(#)cal.1       8.1 (Berkeley) 6/6/93
  36 .\"
  37 .TH CAL 1 "June 2011" "util-linux" "User Commands"
  38 .SH NAME
  39 cal \- display a calendar
  40 .SH SYNOPSIS
  41 .B cal
  42 [\fIoptions\fR] [[[\fIday\fR] \fImonth\fR] \fIyear\fR]
  43 .SH DESCRIPTION
  44 .B cal
  45 displays a simple calendar.  If no arguments are specified, the current
  46 month is displayed.
  47 .SH OPTIONS
  48 .TP
  49 \fB\-1\fR, \fB\-\-one\fR
  50 Display single month output.
  51 (This is the default.)
  52 .TP
  53 \fB\-3\fR, \fB\-\-three\fR
  54 Display three months spanning the date.
  55 .TP
  56 \fB\-s\fR, \fB\-\-sunday\fR
  57 Display Sunday as the first day of the week.
  58 .TP
  59 \fB\-m\fR, \fB\-\-monday\fR
  60 Display Monday as the first day of the week.
  61 .TP
  62 \fB\-j\fR, \fB\-\-julian\fR
  63 Display Julian dates (days one-based, numbered from January 1).
  64 .TP
  65 \fB\-y\fR, \fB\-\-year\fR
  66 Display a calendar for the whole year.
  67 .TP
  68 \fB\-w\fR, \fB\-\-week\fR[\fI=number\fR]
  69 Display week numbers in the calendar (US or ISO-8601).
  70 .TP
  71 \fB\-\-color\fR [\fIwhen\fR]
  72 Colorize output.  The
  73 .I when
  74 can be
  75 .IR never ,
  76 .IR auto ,
  77 or
  78 .IR always .
  79 Never will turn off colorizing in all situations.  Auto is default, and
  80 it will make colorizing to be in use if output is done to terminal.
  81 Always will allow colors to be outputed when
  82 .B cal
  83 outputs to pipe, or is called from a script.
  84 .TP
  85 \fB\-V\fR, \fB\-\-version\fR
  86 Display version information and exit.
  87 .TP
  88 \fB\-h\fR, \fB\-\-help\fR
  89 Display help text and exit.
  90 .SH PARAMETERS
  91 A single parameter specifies the year to be displayed; note the
  92 year must be fully specified:
  93 .B "cal 89"
  94 will not display a calendar for 1989.
  95 .PP
  96 Two parameters denote the month (1 - 12) and year.
  97 .PP
  98 Three parameters denote the day (1-31), month and year, and the day will be
  99 highlighted if the calendar is displayed on a terminal. If no parameters are
 100 specified, the current month's calendar is displayed.
 101 .PP
 102 A year starts on Jan 1. The first day of the week is determined by the
 103 locale.
 104 .PP
 105 The week numbering depends on the choice of the first day of the week.  If Sunday
 106 (the default) is used for the first day of the week, then the customary North
 107 American numbering will be used, i.e. the first Sunday of the year starts the
 108 first week.  If Monday is selected, then the ISO-8601 standard week numbering
 109 is used, where the first Thursday of the year is in week number 1.
 110 .SH COLORS
 111 Implicit coloring can be disabled as follows:
 112 .RS
 113
 114 .br
 115 .BI "touch /etc/terminal-colors.d/cal.disable"
 116 .br
 117
 118 .RE
 119 For more details see
 120 .BR terminal-colors.d (5).
 121 .SH BUGS
 122 .PP
 123 The
 124 .B cal
 125 program uses the 3rd of September 1752 as the date of the Gregorian calendar
 126 reformation -- that is when it happened in Great Britain and its colonies
 127 (including what is now the USA).  Ten days following that date were eliminated
 128 by this reformation, so the calendar for that month is rather unusual.
 129 The actual historical dates at which the calendar reform happened in all the
 130 different countries (locales) are ignored.
 131 .PP
 132 Alternative calendars, such as the Umm al-Qura, the Solar Hijri, the Ge'ez,
 133 or the lunisolar Hindu, are not supported.
 134 .SH HISTORY
 135 A cal command appeared in Version 6 AT&T UNIX.
 136 .SH AVAILABILITY
 137 The cal command is part of the util-linux package and is available from
 138 ftp://ftp.kernel.org/pub/linux/utils/util-linux/.