239 lines
6.3 KiB
HTML
239 lines
6.3 KiB
HTML
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<!-- Copyright (c) 2001 The Open Group, All Rights Reserved -->
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<title>cal</title>
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</head>
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<body bgcolor="white">
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<script type="text/javascript" language="JavaScript" src="../jscript/codes.js">
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<basefont size="3"> <a name="cal"></a> <a name="tag_04_13"></a><!-- cal -->
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<!--header start-->
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<center><font size="2">The Open Group Base Specifications Issue 6<br>
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IEEE Std 1003.1-2001<br>
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Copyright © 2001 The IEEE and The Open Group, All Rights reserved.</font></center>
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<!--header end-->
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<hr size="2" noshade>
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<h4><a name="tag_04_13_01"></a>NAME</h4>
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<blockquote>cal - print a calendar</blockquote>
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<h4><a name="tag_04_13_02"></a>SYNOPSIS</h4>
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<blockquote class="synopsis">
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<div class="box"><code><tt><sup>[<a href="javascript:open_code('XSI')">XSI</a>]</sup> <img src="../images/opt-start.gif" alt=
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"[Option Start]" border="0"> cal</tt> <b>[[</b><i>month</i><b>]</b> <i>year</i> <b>]</b><tt><img src="../images/opt-end.gif" alt=
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"[Option End]" border="0"></tt></code></div>
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</blockquote>
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<h4><a name="tag_04_13_03"></a>DESCRIPTION</h4>
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<blockquote>
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<p>The <i>cal</i> utility shall write a calendar to standard output using the Julian calendar for dates from January 1, 1 through
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September 2, 1752 and the Gregorian calendar for dates from September 14, 1752 through December 31, 9999 as though the Gregorian
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calendar had been adopted on September 14, 1752.</p>
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</blockquote>
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<h4><a name="tag_04_13_04"></a>OPTIONS</h4>
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<blockquote>
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<p>None.</p>
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</blockquote>
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<h4><a name="tag_04_13_05"></a>OPERANDS</h4>
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<blockquote>
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<p>The following operands shall be supported:</p>
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<dl compact>
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<dt><i>month</i></dt>
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<dd>Specify the month to be displayed, represented as a decimal integer from 1 (January) to 12 (December). The default shall be the
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current month.</dd>
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<dt><i>year</i></dt>
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<dd>Specify the year for which the calendar is displayed, represented as a decimal integer from 1 to 9999. The default shall be the
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current year.</dd>
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</dl>
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</blockquote>
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<h4><a name="tag_04_13_06"></a>STDIN</h4>
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<blockquote>
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<p>Not used.</p>
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</blockquote>
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<h4><a name="tag_04_13_07"></a>INPUT FILES</h4>
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<blockquote>
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<p>None.</p>
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</blockquote>
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<h4><a name="tag_04_13_08"></a>ENVIRONMENT VARIABLES</h4>
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<blockquote>
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<p>The following environment variables shall affect the execution of <i>cal</i>:</p>
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<dl compact>
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<dt><i>LANG</i></dt>
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<dd>Provide a default value for the internationalization variables that are unset or null. (See the Base Definitions volume of
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IEEE Std 1003.1-2001, <a href="../basedefs/xbd_chap08.html#tag_08_02">Section 8.2, Internationalization Variables</a> for
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the precedence of internationalization variables used to determine the values of locale categories.)</dd>
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<dt><i>LC_ALL</i></dt>
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<dd>If set to a non-empty string value, override the values of all the other internationalization variables.</dd>
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<dt><i>LC_CTYPE</i></dt>
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<dd>Determine the locale for the interpretation of sequences of bytes of text data as characters (for example, single-byte as
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opposed to multi-byte characters in arguments).</dd>
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<dt><i>LC_MESSAGES</i></dt>
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<dd>Determine the locale that should be used to affect the format and contents of diagnostic messages written to standard error,
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and informative messages written to standard output.</dd>
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<dt><i>LC_TIME</i></dt>
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<dd>Determine the format and contents of the calendar.</dd>
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<dt><i>NLSPATH</i></dt>
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<dd>Determine the location of message catalogs for the processing of <i>LC_MESSAGES .</i></dd>
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<dt><i>TZ</i></dt>
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<dd>Determine the timezone used to calculate the value of the current month.</dd>
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</dl>
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</blockquote>
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<h4><a name="tag_04_13_09"></a>ASYNCHRONOUS EVENTS</h4>
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<blockquote>
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<p>Default.</p>
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</blockquote>
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<h4><a name="tag_04_13_10"></a>STDOUT</h4>
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<blockquote>
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<p>The standard output shall be used to display the calendar, in an unspecified format.</p>
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</blockquote>
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<h4><a name="tag_04_13_11"></a>STDERR</h4>
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<blockquote>
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<p>The standard error shall be used only for diagnostic messages.</p>
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</blockquote>
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<h4><a name="tag_04_13_12"></a>OUTPUT FILES</h4>
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<blockquote>
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<p>None.</p>
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</blockquote>
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<h4><a name="tag_04_13_13"></a>EXTENDED DESCRIPTION</h4>
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<blockquote>
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<p>None.</p>
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</blockquote>
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<h4><a name="tag_04_13_14"></a>EXIT STATUS</h4>
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<blockquote>
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<p>The following exit values shall be returned:</p>
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<dl compact>
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<dt> 0</dt>
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<dd>Successful completion.</dd>
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<dt>>0</dt>
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<dd>An error occurred.</dd>
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</dl>
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</blockquote>
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<h4><a name="tag_04_13_15"></a>CONSEQUENCES OF ERRORS</h4>
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<blockquote>
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<p>Default.</p>
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</blockquote>
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<hr>
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<div class="box"><em>The following sections are informative.</em></div>
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<h4><a name="tag_04_13_16"></a>APPLICATION USAGE</h4>
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<blockquote>
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<p>Note that:</p>
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<pre>
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<tt>cal 83
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</tt>
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</pre>
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<p>refers to A.D. 83, not 1983.</p>
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</blockquote>
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<h4><a name="tag_04_13_17"></a>EXAMPLES</h4>
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<blockquote>
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<p>None.</p>
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</blockquote>
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<h4><a name="tag_04_13_18"></a>RATIONALE</h4>
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<blockquote>
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<p>None.</p>
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</blockquote>
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<h4><a name="tag_04_13_19"></a>FUTURE DIRECTIONS</h4>
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<blockquote>
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<p>A future version of IEEE Std 1003.1-2001 may support locale-specific recognition of the date of adoption of the
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Gregorian calendar.</p>
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</blockquote>
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<h4><a name="tag_04_13_20"></a>SEE ALSO</h4>
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<blockquote>
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<p>None.</p>
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</blockquote>
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<h4><a name="tag_04_13_21"></a>CHANGE HISTORY</h4>
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<blockquote>
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<p>First released in Issue 2.</p>
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</blockquote>
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<h4><a name="tag_04_13_22"></a>Issue 6</h4>
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<blockquote>
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<p>The DESCRIPTION is updated to allow for traditional behavior for years before the adoption of the Gregorian calendar.</p>
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</blockquote>
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<div class="box"><em>End of informative text.</em></div>
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<hr>
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<hr size="2" noshade>
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<center><font size="2"><!--footer start-->
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UNIX ® is a registered Trademark of The Open Group.<br>
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POSIX ® is a registered Trademark of The IEEE.<br>
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[ <a href="../mindex.html">Main Index</a> | <a href="../basedefs/contents.html">XBD</a> | <a href=
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"../utilities/contents.html">XCU</a> | <a href="../functions/contents.html">XSH</a> | <a href="../xrat/contents.html">XRAT</a>
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