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.
Display single month output. (This is the default.)
Display three months spanning the date.
-n , --months number
Display number of months, starting from the month containing
Display months spanning the date.
Display Sunday as the first day of the week.
Display Monday as the first day of the week.
Display Julian dates (days one-based, numbered from January
Display a calendar for the whole year.
Display a calendar for the next twelve months.
Display week numbers in the calendar (US or ISO-8601).
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.
Display version information and exit.
Display help text and exit.
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 "+" 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 '+2days'. Instead of prefixing the time span
with "+" or "-", it may also be suffixed with a space and the
word "left" or "ago" (for example '1 week ago').
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
A year starts on January 1. The first day of the week is determined
by the locale.
The week numbering depends on the choice of the first day of the
week. If Sunday (the default) is used for the first day of the week,
then the customary North American numbering will be used, i.e. the
first Sunday of the year starts the first week. If Monday is
selected, then the ISO-8601 standard week numbering is used, where
the first Thursday of the year is in week number 1.
The cal program uses the 3rd of September 1752 as the date of the
Gregorian calendar reformation -- that is when it happened in Great
Britain and its colonies (including what is now the USA). Starting
at that date, eleven days were eliminated by this reformation, so the
calendar for that month is rather unusual. The actual historical
dates at which the calendar reform happened in all the different
countries (locales) are ignored.
Alternative calendars, such as the Umm al-Qura, the Solar Hijri, the
Ge'ez, or the lunisolar Hindu, are not supported.
This page is part of the util-linux (a random collection of Linux
utilities) project. Information about the project can be found at
⟨https://www.kernel.org/pub/linux/utils/util-linux/⟩. If you have a
bug report for this manual page, send it to
firstname.lastname@example.org. This page was obtained from the
project's upstream Git repository
2017-03-13. If you discover any rendering problems in this HTML ver‐
sion of the page, or you believe there is a better or more up-to-date
source for the page, or you have corrections or improvements to the
information in this COLOPHON (which is not part of the original man‐
ual page), send a mail to email@example.com
util-linux June 2015 CAL(1)