98 lines
3.8 KiB
Groff
98 lines
3.8 KiB
Groff
.\" Copyright (c) 1989, 1990, 1993
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.\" The Regents of the University of California. All rights reserved.
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.\"
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.\" This code is derived from software contributed to Berkeley by
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.\" Kim Letkeman.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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.\" This product includes software developed by the University of
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.\" California, Berkeley and its contributors.
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.\" 4. Neither the name of the University nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" @(#)cal.1 8.1 (Berkeley) 6/6/93
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.\"
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.TH CAL 1 "June 2011" "util-linux" "User Commands"
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.SH NAME
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cal \- display a calendar
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.SH SYNOPSIS
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.B cal
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[\fIoptions\fR] [[[\fIday\fR] \fImonth\fR] \fIyear\fR]
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.SH DESCRIPTION
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.B cal
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displays a simple calendar. If no arguments are specified, the current
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month is displayed.
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.SH OPTIONS
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.TP
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\fB\-1\fR, \fB\-\-one\fR
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Display single month output.
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(This is the default.)
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.TP
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\fB\-3\fR, \fB\-\-three\fR
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Display prev/current/next month output.
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.TP
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\fB\-s\fR, \fB\-\-sunday\fR
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Display Sunday as the first day of the week.
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.TP
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\fB\-m\fR, \fB\-\-monday\fR
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Display Monday as the first day of the week.
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.TP
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\fB\-j\fR, \fB\-\-julian\fR
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Display Julian dates (days one-based, numbered from January 1).
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.TP
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\fB\-y\fR, \fB\-\-year\fR
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Display a calendar for the current year.
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.TP
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\fB\-V\fR, \fB\-\-version\fR
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Display version information and exit.
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.TP
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\fB\-h\fR, \fB\-\-help\fR
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Display help screen and exit.
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.SH PARAMETERS
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A single parameter specifies the year (1 - 9999) to be displayed; note the
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year must be fully specified:
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.B "cal 89"
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will not display a calendar for 1989.
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.PP
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Two parameters denote the month (1 - 12) and year.
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.PP
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Three parameters denote the day (1-31), month and year, and the day will be
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highlighted if the calendar is displayed on a terminal. If no parameters are
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specified, the current month's calendar is displayed.
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.PP
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A year starts on Jan 1. The first day of the week is determined by the
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locale.
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.PP
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The Gregorian Reformation is assumed to have occurred in 1752 on the 3rd of
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September. By this time, most countries had recognized the reformation
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(although a few did not recognize it until the early 1900's). Ten days
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following that date were eliminated by the reformation, so the calendar for
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that month is a bit unusual.
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.SH HISTORY
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A cal command appeared in Version 6 AT&T UNIX.
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.SH AVAILABILITY
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The cal command is part of the util-linux package and is available from
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ftp://ftp.kernel.org/pub/linux/utils/util-linux/.
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