1CAL(1)                    BSD General Commands Manual                   CAL(1)
2

NAME

4     cal — displays a calendar
5

SYNOPSIS

7     cal [-smjy13] [[[day] month] year]
8

DESCRIPTION

10     Cal displays a simple calendar.  If arguments are not specified, the cur‐
11     rent month is displayed.  The options are as follows:
12
13     -1      Display single month output.  (This is the default.)
14
15     -3      Display prev/current/next month output.
16
17     -s      Display Sunday as the first day of the week.
18
19     -m      Display Monday as the first day of the week.
20
21     -j      Display Julian dates (days one-based, numbered from January 1).
22
23     -y      Display a calendar for the current year.
24
25     -V      Display version information and exit.
26
27     A single parameter specifies the year (1 - 9999) to be displayed; note
28     the year must be fully specified: “cal 89” will not display a calendar
29     for 1989.  Two parameters denote the month (1 - 12) and year.  Three
30     parameters denote the day (1-31), month and year, and the day will be
31     highlighted if the calendar is displayed on a terminal.  If no parameters
32     are specified, the current month's calendar is displayed.
33
34     A year starts on Jan 1. The first day of the week is determined by the
35     locale.
36
37     The Gregorian Reformation is assumed to have occurred in 1752 on the 3rd
38     of September.  By this time, most countries had recognized the reforma‐
39     tion (although a few did not recognize it until the early 1900's.)  Ten
40     days following that date were eliminated by the reformation, so the cal‐
41     endar for that month is a bit unusual.
42

HISTORY

44     A cal command appeared in Version 6 AT&T UNIX.
45

AVAILABILITY

47     The cal command is part of the util-linux-ng package and is available
48     from ftp://ftp.kernel.org/pub/linux/utils/util-linux-ng/.
49
50BSD                              June 6, 1993                              BSD