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Annotation of src/usr.bin/cal/cal.1, Revision 1.16

1.16    ! jmc         1: .\"    $OpenBSD: cal.1,v 1.15 2005/12/07 16:50:51 tom Exp $
1.1       deraadt     2: .\"    $NetBSD: cal.1,v 1.6 1995/09/02 05:34:20 jtc Exp $
                      3: .\"
                      4: .\" Copyright (c) 1989, 1990, 1993
                      5: .\"    The Regents of the University of California.  All rights reserved.
                      6: .\"
                      7: .\" This code is derived from software contributed to Berkeley by
                      8: .\" Kim Letkeman.
                      9: .\"
                     10: .\" Redistribution and use in source and binary forms, with or without
                     11: .\" modification, are permitted provided that the following conditions
                     12: .\" are met:
                     13: .\" 1. Redistributions of source code must retain the above copyright
                     14: .\"    notice, this list of conditions and the following disclaimer.
                     15: .\" 2. Redistributions in binary form must reproduce the above copyright
                     16: .\"    notice, this list of conditions and the following disclaimer in the
                     17: .\"    documentation and/or other materials provided with the distribution.
1.11      millert    18: .\" 3. Neither the name of the University nor the names of its contributors
1.1       deraadt    19: .\"    may be used to endorse or promote products derived from this software
                     20: .\"    without specific prior written permission.
                     21: .\"
                     22: .\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
                     23: .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     24: .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     25: .\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     26: .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     27: .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     28: .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     29: .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     30: .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     31: .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     32: .\" SUCH DAMAGE.
                     33: .\"
                     34: .\"     @(#)cal.1      8.2 (Berkeley) 4/28/95
                     35: .\"
                     36: .Dd April 28, 1995
                     37: .Dt CAL 1
                     38: .Os
                     39: .Sh NAME
                     40: .Nm cal
                     41: .Nd displays a calendar
                     42: .Sh SYNOPSIS
                     43: .Nm cal
                     44: .Op Fl jy
1.15      tom        45: .Op Ar month
                     46: .Op Ar year
1.1       deraadt    47: .Sh DESCRIPTION
1.8       aaron      48: .Nm
1.1       deraadt    49: displays a simple calendar.
1.13      jmc        50: Calendars may be displayed by month or by year.
1.9       aaron      51: .Pp
1.1       deraadt    52: The options are as follows:
                     53: .Bl -tag -width Ds
                     54: .It Fl j
1.9       aaron      55: Display Julian dates (days one-based, numbered from January 1).
1.1       deraadt    56: .It Fl y
                     57: Display a calendar for the current year.
                     58: .El
                     59: .Pp
1.13      jmc        60: A single numerical parameter specifies the
                     61: .Ar year
                     62: (1 \- 9999)
                     63: to be displayed.
                     64: The year must be fully specified:
1.1       deraadt    65: .Dq Li cal 89
                     66: will
                     67: .Em not
                     68: display a calendar for 1989.
1.14      tom        69: Two parameters denote the
1.13      jmc        70: .Ar month
1.14      tom        71: (1 \- 12, or a month name or abbreviation thereof)
1.13      jmc        72: and
                     73: .Ar year .
                     74: Alternatively,
1.14      tom        75: a single parameter may be given specifying
                     76: the name or abbreviated name of a month:
1.13      jmc        77: in that case a calendar is displayed for that month of the current year.
1.1       deraadt    78: If no parameters are specified, the current month's calendar is
                     79: displayed.
                     80: .Pp
1.9       aaron      81: A year starts on January 1st.
1.1       deraadt    82: .Pp
1.5       deraadt    83: The Gregorian Reformation is assumed to have occurred in 1752 after the 2nd
1.1       deraadt    84: of September.
                     85: By this time, most countries had recognized the reformation (although a
1.10      aaron      86: few did not recognize it until the early 1900's).
1.5       deraadt    87: Eleven days following that date were eliminated by the reformation, so the
1.1       deraadt    88: calendar for that month is a bit unusual.
1.9       aaron      89: .Sh SEE ALSO
                     90: .Xr calendar 1
1.4       denny      91: .Sh STANDARDS
                     92: The
1.8       aaron      93: .Nm
1.16    ! jmc        94: utility is compliant with the
        !            95: .St -p1003.1-2004
        !            96: specification.
        !            97: .Pp
        !            98: The flags
        !            99: .Op Fl jy
        !           100: are extensions to that specification.
1.1       deraadt   101: .Sh HISTORY
                    102: A
                    103: .Nm
1.7       aaron     104: command appeared in
1.1       deraadt   105: .At v6 .