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cal(5) [linux man page]

CAL(P)							     POSIX Programmer's Manual							    CAL(P)

NAME

       cal - print a calendar

SYNOPSIS

       cal [[month] year ]

DESCRIPTION

       The  cal  utility shall write a calendar to standard output using the Julian calendar for dates from January 1, 1 through September 2, 1752
       and the Gregorian calendar for dates from September 14, 1752 through December 31, 9999 as though the Gregorian calendar had been adopted on
       September 14, 1752.

OPTIONS

       None.

OPERANDS

       The following operands shall be supported:

       month  Specify the month to be displayed, represented as a decimal integer from 1 (January) to 12 (December). The default shall be the cur-
	      rent month.

       year   Specify the year for which the calendar is displayed, represented as a decimal integer from 1 to 9999. The default shall be the cur-
	      rent year.

STDIN

       Not used.

INPUT FILES

       None.

ENVIRONMENT VARIABLES

       The following environment variables shall affect the execution of cal:

       LANG   Provide  a  default  value  for  the  internationalization  variables  that  are	unset or null. (See the Base Definitions volume of
	      IEEE Std 1003.1-2001, Section 8.2, Internationalization Variables for the  precedence  of  internationalization  variables  used	to
	      determine the values of locale categories.)

       LC_ALL If set to a non-empty string value, override the values of all the other internationalization variables.

       LC_CTYPE
	      Determine the locale for the interpretation of sequences of bytes of text data as characters (for example, single-byte as opposed to
	      multi-byte characters in arguments).

       LC_MESSAGES
	      Determine the locale that should be used to affect the format and contents of diagnostic messages written  to  standard  error,  and
	      informative messages written to standard output.

       LC_TIME
	      Determine the format and contents of the calendar.

       NLSPATH
	      Determine the location of message catalogs for the processing of LC_MESSAGES .

       TZ     Determine the timezone used to calculate the value of the current month.

ASYNCHRONOUS EVENTS

       Default.

STDOUT

       The standard output shall be used to display the calendar, in an unspecified format.

STDERR

       The standard error shall be used only for diagnostic messages.

OUTPUT FILES

       None.

EXTENDED DESCRIPTION

       None.

EXIT STATUS

       The following exit values shall be returned:

	0     Successful completion.

       >0     An error occurred.

CONSEQUENCES OF ERRORS

       Default.

       The following sections are informative.

APPLICATION USAGE

       Note that:

	      cal 83

       refers to A.D. 83, not 1983.

EXAMPLES

       None.

RATIONALE

       None.

FUTURE DIRECTIONS

       A future version of IEEE Std 1003.1-2001 may support locale-specific recognition of the date of adoption of the Gregorian calendar.

SEE ALSO

       None.

COPYRIGHT

       Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2003 Edition, Standard for Information Technol-
       ogy -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of
       Electrical  and	Electronics  Engineers, Inc and The Open Group. In the event of any discrepancy between this version and the original IEEE
       and The Open Group Standard, the original IEEE and The Open Group Standard is the referee document. The original Standard can  be  obtained
       online at http://www.opengroup.org/unix/online.html .

IEEE
/The Open Group						       2003								    CAL(P)

Check Out this Related Man Page

cal(1)							      General Commands Manual							    cal(1)

NAME

       cal - Displays a calendar

SYNOPSIS

       cal [month [year]]

STANDARDS

       Interfaces documented on this reference page conform to industry standards as follows:

       cal:  XCU5.0

       Refer to the standards(5) reference page for more information about industry standards and associated tags.

OPTIONS

       None

OPERANDS

       Names the month for which you want the calendar.  It can be a number between 1 and 12 for January through December, respectively.  If month
       is not specified, cal displays a calendar for the entire year, unless year is also omitted.  Names the year for which you want  the  calen-
       dar.  Because cal can display a calendar for any year from 1 to 9999, enter the full year rather than just the last two digits.	If year is
       not specified, cal uses the current year.

       If no operands are specified, cal displays a calendar for the current month.

DESCRIPTION

       The cal command writes to standard output a Gregorian calendar for the specified year or month.

       For historical reasons, the cal command's Gregorian calendar is discontinuous. The display for September  1752  (cal  9	1752)  jumps  from
       Wednesday the 2nd to Thursday the 14th.

       The  cal  command  checks  the LC_TIME environment variable and uses the correct headers for the current locale. If LC_TIME is not set, cal
       checks the value of LANG. If neither variable is set, you receive English headers.

EXIT STATUS

       The following exit values are returned: Successful completion.  An error occurred.

EXAMPLES

       To display a calendar for February 1990, enter: cal 2 1990 To display a calendar for the year 84 A.D., enter: cal 84 To display a  calendar
       for the current month, enter: cal

ENVIRONMENT VARIABLES

       The following environment variables affect the execution of *cmd*: Provides a default value for the internationalization variables that are
       unset or null. If LANG is unset or null, the corresponding value from the default locale is used.  If any of the internationalization vari-
       ables  contain  an  invalid setting, the utility behaves as if none of the variables had been defined.  If set to a non-empty string value,
       overrides the values of all the other internationalization variables.  Determines the locale for the interpretation of sequences  of  bytes
       of  text data as characters (for example, single-byte as opposed to multibyte characters in arguments).	Determines the locale for the for-
       mat and contents of diagnostic messages written to standard error.  Determines the format and contents of  the  calendar.   Determines  the
       location  of  message  catalogues  for  the processing of LC_MESSAGES.  Determines the time zone used to calculate the value of the current
       month.

SEE ALSO

       Commands:  date(1)

       Files:  locale(4)

       Standards:  standards(5)

       Command and Shell User's Guide

																	    cal(1)
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