247 lines
7.2 KiB
Groff
247 lines
7.2 KiB
Groff
.\" $NetBSD: calendar.1,v 1.27 2017/07/03 21:34:18 wiz Exp $
|
|
.\"
|
|
.\" Copyright (c) 1989, 1990, 1993
|
|
.\" The Regents of the University of California. All rights reserved.
|
|
.\"
|
|
.\" 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. 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.
|
|
.\"
|
|
.\" @(#)calendar.1 8.1 (Berkeley) 6/29/93
|
|
.\"
|
|
.Dd June 1, 2016
|
|
.Dt CALENDAR 1
|
|
.Os
|
|
.Sh NAME
|
|
.Nm calendar
|
|
.Nd reminder service
|
|
.Sh SYNOPSIS
|
|
.Nm
|
|
.Op Fl avx
|
|
.Op Fl d Ar MMDD[[YY]YY]
|
|
.Op Fl f Ar file
|
|
.Op Fl l Ar days
|
|
.Op Fl w Ar days
|
|
.Sh DESCRIPTION
|
|
The
|
|
.Nm
|
|
utility processes text files and displays lines that match certain dates.
|
|
.Pp
|
|
The following options are available:
|
|
.Bl -tag -width Ds
|
|
.It Fl a
|
|
Process the
|
|
.Dq calendar
|
|
files of all users and mail the results to them.
|
|
This requires super-user privileges.
|
|
.It Fl d Ar MMDD[[YY]YY]
|
|
Display lines for the given date.
|
|
By default, the current date is used.
|
|
The year, which may be given in either two or four digit format, is used
|
|
only for purposes of determining whether the given date falls on a Friday
|
|
in that year (see below).
|
|
If the year is not specified, the current year is assumed.
|
|
.It Fl f Ar file
|
|
Display matching calendar files from the given filename.
|
|
By default, the following filenames are checked for:
|
|
.Bl -item -compact -offset indent
|
|
.It
|
|
.Pa ~/calendar
|
|
.It
|
|
.Pa ~/.calendar
|
|
.It
|
|
.Pa /etc/calendar
|
|
.El
|
|
and the first which is found is used.
|
|
The filename may be absolute.
|
|
If not absolute, it is taken relative to the
|
|
directory specified by the
|
|
.Ev CALENDAR_DIR
|
|
environment variable, if set; otherwise, it is taken relative to the
|
|
user's home directory.
|
|
Or, if the
|
|
.Fl a
|
|
flag is given, a non-absolute filename is taken relative to each user's
|
|
home directory in turn.
|
|
.It Fl l Ar days
|
|
Causes the program to
|
|
.Dq look ahead
|
|
a given number of days (default one) from the specified date and
|
|
display their entries as well.
|
|
.It Fl w Ar days
|
|
Causes the program to add the specified number of days to the
|
|
.Dq look ahead
|
|
number if and only if the day specified is a Friday.
|
|
The default value is two, which causes
|
|
.Nm
|
|
to print entries through the weekend on Fridays.
|
|
.It Fl v
|
|
Causes
|
|
.Nm
|
|
to print version information for itself,
|
|
and then exit.
|
|
.It Fl x
|
|
Causes
|
|
.Nm
|
|
not to set the
|
|
.Ev CPP_RESTRICTED
|
|
environment variable.
|
|
Passing this flag allows users the (somewhat obscure) option of
|
|
including a named pipe via
|
|
.Xr cpp 1 Ns No 's
|
|
.Li #include
|
|
syntax, but opens up the possibility of
|
|
.Nm
|
|
hanging indefinitely if users do so incorrectly.
|
|
For this reason, the
|
|
.Fl x
|
|
flag should never be used with
|
|
.Nm
|
|
.Fl a .
|
|
.El
|
|
.Pp
|
|
Lines should begin with a month and day.
|
|
They may be entered in almost any format, either numeric or as character
|
|
strings.
|
|
A single asterisk
|
|
.Pq Sq *
|
|
matches every month, or every day if a month has been provided.
|
|
This means that two asterisks
|
|
.Pq Sq **
|
|
matches every day of the year, and is thus useful for ToDo tasks.
|
|
A day without a month matches that day of every week.
|
|
A month without a day matches the first of that month.
|
|
Two numbers default to the month followed by the day.
|
|
Lines with leading tabs default to the last entered date, allowing
|
|
multiple line specifications for a single date.
|
|
By convention, dates followed by an asterisk are not fixed, i.e., change
|
|
from year to year.
|
|
.Pp
|
|
The
|
|
.Dq calendar
|
|
file is preprocessed by
|
|
.Xr cpp 1 ,
|
|
allowing the inclusion of shared files such as company holidays or
|
|
meetings.
|
|
If the shared file is not referenced by a full pathname,
|
|
.Xr cpp 1
|
|
searches in the current (or home) directory first, and then in the
|
|
directory
|
|
.Pa /usr/share/calendar .
|
|
Empty lines and lines protected by the C commenting syntax
|
|
.Pq Li /* ... */
|
|
are ignored.
|
|
.Pp
|
|
Some possible calendar entries:
|
|
.Bd -literal -offset indent
|
|
#include <calendar.usholiday>
|
|
#include <calendar.birthday>
|
|
|
|
6/15 ... June 15 (if ambiguous, will default to month/day).
|
|
Jun. 15 ... June 15.
|
|
15 June ... June 15.
|
|
Thursday ... Every Thursday.
|
|
June ... Every June 1st.
|
|
15 * ... 15th of every month.
|
|
*15 ... 15th of every month.
|
|
June* ... Every day of June.
|
|
** ... Every day
|
|
.Ed
|
|
.Sh FILES
|
|
The following default calendar files are provided:
|
|
.Pp
|
|
.Bl -tag -width calendar.christian -compact
|
|
.It Pa calendar.birthday
|
|
Births and deaths of famous (and not-so-famous) people.
|
|
.It Pa calendar.christian
|
|
Christian holidays.
|
|
This calendar should be updated yearly by the local system administrator
|
|
so that roving holidays are set correctly for the current year.
|
|
.It Pa calendar.computer
|
|
Days of special significance to computer people.
|
|
.It Pa calendar.history
|
|
Everything else, mostly U.S. historical events.
|
|
.It Pa calendar.holiday
|
|
Other holidays, including the not-well-known, obscure, and
|
|
.Em really
|
|
obscure.
|
|
.It Pa calendar.judaic
|
|
Jewish holidays.
|
|
This calendar should be updated yearly by the local system administrator
|
|
so that roving holidays are set correctly for the current year.
|
|
.It Pa calendar.lotr
|
|
Important dates in the Lord of the Rings series.
|
|
.It Pa calendar.music
|
|
Musical events, births, and deaths.
|
|
Strongly oriented toward rock 'n' roll.
|
|
.It Pa calendar.netbsd
|
|
Important dates in the history of the
|
|
.Nx
|
|
project.
|
|
Mostly releases and port additions.
|
|
.It Pa calendar.usholiday
|
|
U.S. holidays.
|
|
This calendar should be updated yearly by the local system administrator
|
|
so that roving holidays are set correctly for the current year.
|
|
.El
|
|
.Sh COMPATIBILITY
|
|
The
|
|
.Nm
|
|
program previously selected lines which had the correct date anywhere
|
|
in the line.
|
|
This is no longer true, the date is only recognized when it occurs
|
|
first on the line.
|
|
.Pp
|
|
In
|
|
.Nx 3.0 ,
|
|
the
|
|
.Nm
|
|
command was modified to search the user's home directory instead of the current
|
|
directory by default.
|
|
Users desiring the historical behavior should set the
|
|
.Ev CALENDAR_DIR
|
|
environment variable to
|
|
.Pa \&. ,
|
|
or use the
|
|
.Fl f
|
|
flag.
|
|
.Sh SEE ALSO
|
|
.Xr at 1 ,
|
|
.Xr cpp 1 ,
|
|
.Xr cron 8
|
|
.Sh HISTORY
|
|
A
|
|
.Nm
|
|
command appeared in
|
|
.At v7 .
|
|
.Sh BUGS
|
|
.Nm
|
|
doesn't handle events that move around from year to year, i.e.,
|
|
.Dq the last Monday in April .
|
|
.Pp
|
|
The
|
|
.Fl a
|
|
option ignores the user's
|
|
.Ev CALENDAR_DIR
|
|
environment variable.
|