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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN"><html><head><!-- Copyright 1997 The Open Group, All Rights Reserved --><title>cal</title></head><body bgcolor=white><center><font size=2>The Single UNIX ® Specification, Version 2<br>Copyright © 1997 The Open Group</font></center><hr size=2 noshade><h4><a name = "tag_000_000_210"> </a>NAME</h4><blockquote>cal - print a calendar</blockquote><h4><a name = "tag_000_000_211"> </a>SYNOPSIS</h4><blockquote><pre><code>cal <b>[[</b><i>month</i><b>] </b><i>year </i><b>]</b></code></pre></blockquote><h4><a name = "tag_000_000_212"> </a>DESCRIPTION</h4><blockquote>The<i>cal</i>utility writes a Gregorian calendarto standard output.If the<i>year</i>operand is specified, a calendar for that year is written.If no operands are specified, a calendar for the current month is written.</blockquote><h4><a name = "tag_000_000_213"> </a>OPTIONS</h4><blockquote>None.</blockquote><h4><a name = "tag_000_000_214"> </a>OPERANDS</h4><blockquote>The following operands are supported:<dl compact><dt><i>month</i><dd>Specify the month to be displayed, represented as a decimal integer from1 (January) to 12 (December).The default is the current month.<dt><i>year</i><dd>Specify the year for which the calendar is displayed,represented as a decimal integer from 1 to 9999.The default is the current year.</dl></blockquote><h4><a name = "tag_000_000_215"> </a>STDIN</h4><blockquote>Not used.</blockquote><h4><a name = "tag_000_000_216"> </a>INPUT FILES</h4><blockquote>None.</blockquote><h4><a name = "tag_000_000_217"> </a>ENVIRONMENT VARIABLES</h4><blockquote>The following environment variables affect the execution of<i>cal</i>:<dl compact><dt><i>LANG</i><dd>Provide a default value for the internationalisation variablesthat are unset or null.If<i>LANG</i>is unset or null, the corresponding value from theimplementation-dependent default locale will be used.If any of the internationalisation variables contains an invalid setting, theutility will behave as if none of the variables had been defined.<dt><i>LC_ALL</i><dd>If set to a non-empty string value,override the values of all the other internationalisation variables.<dt><i>LC_CTYPE</i><dd>Determine thelocale for the interpretation of sequences of bytes of text data ascharacters (for example, single- as opposed to multi-byte charactersin arguments).<dt><i>LC_MESSAGES</i><dd>Determine the locale that should be used to affectthe format and contents of diagnosticmessages written to standard error,and informative messages written to standard output.<dt><i>LC_TIME</i><dd>Determine the format and contents of the calendar.<dt><i>NLSPATH</i><dd>Determine the location of message cataloguesfor the processing of<i>LC_MESSAGES .</i><dt><i>TZ</i><dd>Determine the timezone used to calculate the value of the current month.</dl></blockquote><h4><a name = "tag_000_000_218"> </a>ASYNCHRONOUS EVENTS</h4><blockquote>Default.</blockquote><h4><a name = "tag_000_000_219"> </a>STDOUT</h4><blockquote>The standard output is used to display the calendar, in an unspecifiedformat.</blockquote><h4><a name = "tag_000_000_220"> </a>STDERR</h4><blockquote>Used only for diagnostic messages.</blockquote><h4><a name = "tag_000_000_221"> </a>OUTPUT FILES</h4><blockquote>None.</blockquote><h4><a name = "tag_000_000_222"> </a>EXTENDED DESCRIPTION</h4><blockquote>None.</blockquote><h4><a name = "tag_000_000_223"> </a>EXIT STATUS</h4><blockquote>The following exit values are returned:<dl compact><dt>0<dd>Successful completion.<dt>>0<dd>An error occurred.</dl></blockquote><h4><a name = "tag_000_000_224"> </a>CONSEQUENCES OF ERRORS</h4><blockquote>Default.</blockquote><h4><a name = "tag_000_000_225"> </a>APPLICATION USAGE</h4><blockquote>Note that:<pre><code>cal 83</code></pre>refers to A.D. 83, not 1983.</blockquote><h4><a name = "tag_000_000_226"> </a>EXAMPLES</h4><blockquote>None.</blockquote><h4><a name = "tag_000_000_227"> </a>FUTURE DIRECTIONS</h4><blockquote>None.</blockquote><h4><a name = "tag_000_000_228"> </a>SEE ALSO</h4><blockquote>None.</blockquote><hr size=2 noshade><center><font size=2>UNIX ® is a registered Trademark of The Open Group.<br>Copyright © 1997 The Open Group<br> [ <a href="../index.html">Main Index</a> | <a href="../xshix.html">XSH</a> | <a href="../xcuix.html">XCU</a> | <a href="../xbdix.html">XBD</a> | <a href="../cursesix.html">XCURSES</a> | <a href="../xnsix.html">XNS</a> ]</font></center><hr size=2 noshade></body></html>⌨️ 快捷键说明
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