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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>type</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_001_014_2410"> </a>NAME</h4><blockquote>type - write a description of command type</blockquote><h4><a name = "tag_001_014_2411"> </a>SYNOPSIS</h4><blockquote><pre><code>type <i>name</i>...</code></pre></blockquote><h4><a name = "tag_001_014_2412"> </a>DESCRIPTION</h4><blockquote>The<i>type</i>utility indicates how each argument would be interpretedif used as a command name.</blockquote><h4><a name = "tag_001_014_2413"> </a>OPTIONS</h4><blockquote>None.</blockquote><h4><a name = "tag_001_014_2414"> </a>OPERANDS</h4><blockquote>The following operand is supported:<dl compact><dt><i>name</i><dd>A name to be interpreted.</dl></blockquote><h4><a name = "tag_001_014_2415"> </a>STDIN</h4><blockquote>Not used.</blockquote><h4><a name = "tag_001_014_2416"> </a>INPUT FILES</h4><blockquote>None.</blockquote><h4><a name = "tag_001_014_2417"> </a>ENVIRONMENT VARIABLES</h4><blockquote>The following environment variables affect the execution of<i>type</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.<dt><i>NLSPATH</i><dd>Determine the location of message cataloguesfor the processing of<i>LC_MESSAGES .</i><dt><i>PATH</i><dd>Determine the location of<i>name</i>,as described inthe <b>XBD</b> specification, <a href="../xbd/envvar.html"><b>Environment Variables</b> </a> .</dl></blockquote><h4><a name = "tag_001_014_2418"> </a>ASYNCHRONOUS EVENTS</h4><blockquote>Default.</blockquote><h4><a name = "tag_001_014_2419"> </a>STDOUT</h4><blockquote>The standard output of<i>type</i>contains information abouteach operand in an unspecified format.The informationprovided typically identifies the operand as a shell built-in,function, alias or keyword, and where applicable, maydisplay the operand's pathname.</blockquote><h4><a name = "tag_001_014_2420"> </a>STDERR</h4><blockquote>Used only for diagnostic messages.</blockquote><h4><a name = "tag_001_014_2421"> </a>OUTPUT FILES</h4><blockquote>None.</blockquote><h4><a name = "tag_001_014_2422"> </a>EXTENDED DESCRIPTION</h4><blockquote>None.</blockquote><h4><a name = "tag_001_014_2423"> </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_001_014_2424"> </a>CONSEQUENCES OF ERRORS</h4><blockquote>Default.</blockquote><h4><a name = "tag_001_014_2425"> </a>APPLICATION USAGE</h4><blockquote>Since<i>type</i>must be aware of the contents ofthe current shell execution environment (such as the lists ofcommands, functions and built-ins processed by<i><a href="hash.html">hash</a></i>),it is always provided as a shell regular built-in.If it is called in a separate utility execution environment,such as one of the following:<pre><code>nohup type writerfind . -type f | xargs type</code></pre>it might not produce accurate results.</blockquote><h4><a name = "tag_001_014_2426"> </a>EXAMPLES</h4><blockquote>None.</blockquote><h4><a name = "tag_001_014_2427"> </a>FUTURE DIRECTIONS</h4><blockquote>None.</blockquote><h4><a name = "tag_001_014_2428"> </a>SEE ALSO</h4><blockquote><i><a href="command.html">command</a></i>.</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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