Adding upstream version 2.38.1.upstream/2.38.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

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+//po4a: entry man manual
+////
+Copyright (c) 1989, 1990, 1993
+	The Regents of the University of California.  All rights reserved.
+
+This code is derived from software contributed to Berkeley by
+Kim Letkeman.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+1. Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+3. All advertising materials mentioning features or use of this software
+   must display the following acknowledgement:
+	This product includes software developed by the University of
+	California, Berkeley and its contributors.
+4. Neither the name of the University nor the names of its contributors
+   may be used to endorse or promote products derived from this software
+   without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGE.
+
+    @(#)cal.1	8.1 (Berkeley) 6/6/93
+////
+= cal(1)
+:doctype: manpage
+:man manual: User Commands
+:man source: util-linux {release-version}
+:page-layout: base
+:command: cal
+:plus: +
+
+== NAME
+
+cal - display a calendar
+
+== SYNOPSIS
+
+*cal* [options] [[[_day_] _month_] _year_]
+
+*cal* [options] [_timestamp_|_monthname_]
+
+== DESCRIPTION
+
+*cal* displays a simple calendar. If no arguments are specified, the current month is displayed.
+
+The _month_ may be specified as a number (1-12), as a month name or as an abbreviated month name according to the current locales.
+
+Two different calendar systems are used, Gregorian and Julian. These are nearly identical systems with Gregorian making a small adjustment to the frequency of leap years; this facilitates improved synchronization with solar events like the equinoxes. The Gregorian calendar reform was introduced in 1582, but its adoption continued up to 1923. By default *cal* uses the adoption date of 3 Sept 1752. From that date forward the Gregorian calendar is displayed; previous dates use the Julian calendar system. 11 days were removed at the time of adoption to bring the calendar in sync with solar events. So Sept 1752 has a mix of Julian and Gregorian dates by which the 2nd is followed by the 14th (the 3rd through the 13th are absent).
+
+Optionally, either the proleptic Gregorian calendar or the Julian calendar may be used exclusively. See *--reform* below.
+
+== OPTIONS
+
+*-1*, *--one*::
+Display single month output. (This is the default.)
+
+*-3*, *--three*::
+Display three months spanning the date.
+
+*-n , --months* _number_::
+Display _number_ of months, starting from the month containing the date.
+
+*-S, --span*::
+Display months spanning the date.
+
+*-s*, *--sunday*::
+Display Sunday as the first day of the week.
+
+*-m*, *--monday*::
+Display Monday as the first day of the week.
+
+*-v*, *--vertical*::
+Display using a vertical layout (aka *ncal*(1) mode).
+
+*--iso*::
+Display the proleptic Gregorian calendar exclusively. This option does not affect week numbers and the first day of the week. See *--reform* below.
+
+*-j*, *--julian*::
+Use day-of-year numbering for all calendars. These are also called ordinal days. Ordinal days range from 1 to 366. This option does not switch from the Gregorian to the Julian calendar system, that is controlled by the *--reform* option.
++
+Sometimes Gregorian calendars using ordinal dates are referred to as Julian calendars. This can be confusing due to the many date related conventions that use Julian in their name: (ordinal) julian date, julian (calendar) date, (astronomical) julian date, (modified) julian date, and more. This option is named julian, because ordinal days are identified as julian by the POSIX standard. However, be aware that *cal* also uses the Julian calendar system. See *DESCRIPTION* above.
+
+*--reform* _val_::
+This option sets the adoption date of the Gregorian calendar reform. Calendar dates previous to reform use the Julian calendar system. Calendar dates after reform use the Gregorian calendar system. The argument _val_ can be:
++
+* _1752_ - sets 3 September 1752 as the reform date (default). This is when the Gregorian calendar reform was adopted by the British Empire.
+* _gregorian_ - display Gregorian calendars exclusively. This special placeholder sets the reform date below the smallest year that *cal* can use; meaning all calendar output uses the Gregorian calendar system. This is called the proleptic Gregorian calendar, because dates prior to the calendar system's creation use extrapolated values.
+* _iso_ - alias of _gregorian_. The ISO 8601 standard for the representation of dates and times in information interchange requires using the proleptic Gregorian calendar.
+* _julian_ - display Julian calendars exclusively. This special placeholder sets the reform date above the largest year that *cal* can use; meaning all calendar output uses the Julian calendar system.
+
+See *DESCRIPTION* above.
+
+*-y*, *--year*::
+Display a calendar for the whole year.
+
+*-Y, --twelve*::
+Display a calendar for the next twelve months.
+
+*-w*, *--week*[=_number_]::
+Display week numbers in the calendar (US or ISO-8601). See the *NOTES* section for more details.
+
+*--color*[=_when_]::
+Colorize the output. The optional argument _when_ can be *auto*, *never* or *always*. If the _when_ argument is omitted, it defaults to *auto*. The colors can be disabled; for the current built-in default see the *--help* output. See also the *COLORS* section.
+
+include::man-common/help-version.adoc[]
+
+== PARAMETERS
+
+*Single digits-only parameter (e.g., 'cal 2020')*::
+Specifies the _year_ to be displayed; note the year must be fully specified: *cal 89* will not display a calendar for 1989.
+
+*Single string parameter (e.g., 'cal tomorrow' or 'cal August')*::
+Specifies _timestamp_ or a _month name_ (or abbreviated name) according to the current locales.
++
+The special placeholders are accepted when parsing timestamp, "now" may be used to refer to the current time, "today", "yesterday", "tomorrow" refer to of the current day, the day before or the next day, respectively.
++
+The relative date specifications are also accepted, in this case "{plus}" is evaluated to the current time plus the specified time span. Correspondingly, a time span that is prefixed with "-" is evaluated to the current time minus the specified time span, for example '{plus}2days'. Instead of prefixing the time span with "{plus}" or "-", it may also be suffixed with a space and the word "left" or "ago" (for example '1 week ago').
+//TRANSLATORS: Please keep {plus} untranslated.
+
+*Two parameters (e.g., 'cal 11 2020')*::
+Denote the _month_ (1 - 12) and _year_.
+
+*Three parameters (e.g., 'cal 25 11 2020')*::
+Denote the _day_ (1-31), _month and year_, and the day will be highlighted if the calendar is displayed on a terminal. If no parameters are specified, the current month's calendar is displayed.
+
+== NOTES
+
+A year starts on January 1. The first day of the week is determined by the locale or the *--sunday* and *--monday* options.
+
+The week numbering depends on the choice of the first day of the week. If it is Sunday then the customary North American numbering is used, where 1 January is in week number 1. If it is Monday (*-m*) then the ISO 8601 standard week numbering is used, where the first Thursday is in week number 1.
+
+include::man-common/colors.adoc[]
+
+== HISTORY
+
+A *cal* command appeared in Version 6 AT&T UNIX.
+
+== BUGS
+
+The default *cal* output uses 3 September 1752 as the Gregorian calendar reform date. The historical reform dates for the other locales, including its introduction in October 1582, are not implemented.
+
+Alternative calendars, such as the Umm al-Qura, the Solar Hijri, the Ge'ez, or the lunisolar Hindu, are not supported.
+
+include::man-common/bugreports.adoc[]
+
+include::man-common/footer.adoc[]
+
+ifdef::translation[]
+include::man-common/translation.adoc[]
+endif::[]