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

NAME

4     calendar — reminder service
5

SYNOPSIS

7     calendar [-abw] [-A num] [-B num] [-f calendarfile] [-t [[[cc]yy]mm]dd]
8

DESCRIPTION

10     The calendar utility checks the current directory or the directory speci‐
11     fied by the CALENDAR_DIR environment variable for a file named calendar
12     and displays lines that begin with either today's date or tomorrow's.  On
13     Fridays, events on Friday through Monday are displayed.
14
15     The options are as follows:
16
17     -A num  Print lines from today and next num days (forward, future).
18
19     -a      Process the “calendar” files of all users and mail the results to
20             them.  This requires superuser privileges.
21
22     -B num  Print lines from today and previous num days (backward, past).
23
24     -b      Enforce special date calculation mode for Cyrillic calendars.
25
26     -f calendarfile
27             Use calendarfile as the default calendar file.
28
29     -t [[[cc]yy]mm]dd
30             Act like the specified value is “today” instead of using the cur‐
31             rent date.  If yy is specified, but cc is not, a value for yy
32             between 69 and 99 results in a cc value of 19.  Otherwise, a cc
33             value of 20 is used.
34
35     -w      Print day of the week name in front of each event.
36
37     To handle calendars in your national code table you can specify
38     “LANG=<locale_name>” in the calendar file as early as possible.  To han‐
39     dle national Easter names in the calendars, “Easter=<national_name>” (for
40     Catholic Easter) or “Paskha=<national_name>” (for Orthodox Easter) can be
41     used.
42
43     The “CALENDAR” variable can be used to specify the style.  Only ‘Julian’
44     and ‘Gregorian’ styles are currently supported.  Use “CALENDAR=” to
45     return to the default (Gregorian).
46
47     To enforce special date calculation mode for Cyrillic calendars you
48     should specify “LANG=<local_name>” and “BODUN=<bodun_prefix>” where
49     <local_name> can be ru_RU.UTF-8, uk_UA.UTF-8 or by_BY.UTF-8.
50
51     Other lines should begin with a month and day.  They may be entered in
52     almost any format, either numeric or as character strings.  If proper
53     locale is set, national months and weekdays names can be used.  A single
54     asterisk (‘*’) matches every month.  A day without a month matches that
55     day of every week.  A month without a day matches the first of that
56     month.  Two numbers default to the month followed by the day.  Lines with
57     leading tabs default to the last entered date, allowing multiple line
58     specifications for a single date.  “Easter” (may be followed by a posi‐
59     tive or negative integer) is Easter for this year.  “Paskha” (may be fol‐
60     lowed by a positive or negative integer) is Orthodox Easter for this
61     year.  Weekdays may be followed by “-4” ... “+5” (aliases last, first,
62     second, third, fourth) for moving events like “the last Monday in April”.
63
64     By convention, dates followed by an asterisk (‘*’) are not fixed, i.e.,
65     change from year to year.
66
67     Day descriptions start after the first <tab> character in the line; if
68     the line does not contain a <tab> character, it isn't printed out.  If
69     the first character in the line is a <tab> character, it is treated as
70     the continuation of the previous description.
71
72     The calendar file is preprocessed by cpp(1), allowing the inclusion of
73     shared files such as company holidays or meetings.  If the shared file is
74     not referenced by a full pathname, cpp(1) searches in the current (or
75     home) directory first, and then in the directory /usr/share/calendar.
76     Empty lines and lines protected by the C commenting syntax (/* ... */)
77     are ignored.
78
79     Some possible calendar entries (a \t sequence denotes a <tab> character):
80
81           LANG=C
82           Easter=Ostern
83
84           #include <calendar.usholiday>
85           #include <calendar.birthday>
86
87           6/15\tJune 15 (if ambiguous, will default to month/day).
88           Jun. 15\tJune 15.
89           15 June\tJune 15.
90           Thursday\tEvery Thursday.
91           June\tEvery June 1st.
92           15 *\t15th of every month.
93
94           May Sun+2\tsecond Sunday in May (Muttertag)
95           04/SunLast\tlast Sunday in April,
96           \tsummer time in Europe
97           Easter\tEaster
98           Ostern-2\tGood Friday (2 days before Easter)
99           Paskha\tOrthodox Easter
100

FILES

102     calendar              File in current directory.
103     ~/.calendar           Directory in the user's home directory (which
104                           calendar changes into, if it exists).
105     ~/.calendar/calendar  File to use if no calendar file exists in the cur‐
106                           rent directory.
107     ~/.calendar/nomail    calendar will not send mail if this file exists.
108     calendar.all          International and national calendar files.
109     calendar.birthday     Births and deaths of famous (and not-so-famous)
110                           people.
111     calendar.canada       Canadian holidays.
112     calendar.christian    Christian holidays (should be updated yearly by the
113                           local system administrator so that roving holidays
114                           are set correctly for the current year).
115     calendar.computer     Days of special significance to computer people.
116     calendar.croatian     Croatian calendar.
117     calendar.discord      Discordian calendar (all rites reversed).
118     calendar.fictional    Fantasy and fiction dates (mostly LOTR).
119     calendar.french       French calendar.
120     calendar.german       German calendar.
121     calendar.history      Miscellaneous history.
122     calendar.holiday      Other holidays (including the not-well-known,
123                           obscure, and really obscure).
124     calendar.judaic       Jewish holidays (should be updated yearly by the
125                           local system administrator so that roving holidays
126                           are set correctly for the current year).
127     calendar.music        Musical events, births, and deaths (strongly ori‐
128                           ented toward rock 'n' roll).
129     calendar.nz           New Zealand calendar.
130     calendar.openbsd      OpenBSD related events.
131     calendar.pagan        Pagan holidays, celebrations and festivals.
132     calendar.russian      Russian calendar.
133     calendar.space        Cosmic history.
134     calendar.uk           UK calendar.
135     calendar.ushistory    U.S. history.
136     calendar.usholiday    U.S. holidays.
137     calendar.world        World wide calendar.
138

SEE ALSO

140     at(1), cal(1), cpp(1), mail(1), cron(8)
141

STANDARDS

143     The calendar program previously selected lines which had the correct date
144     anywhere in the line.  This is no longer true: the date is only recog‐
145     nized when it occurs at the beginning of a line.
146

HISTORY

148     A calendar command appeared in Version 7 AT&T UNIX.
149

BUGS

151     calendar doesn't handle all Jewish holidays or moon phases.
152
153BSD                              May 10, 2020                              BSD
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