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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>iconv</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_947"> </a>NAME</h4><blockquote>iconv - codeset conversion</blockquote><h4><a name = "tag_001_014_948"> </a>SYNOPSIS</h4><blockquote><pre><code>iconv -f <i>fromcode</i> -t <i>tocode</i><b> [</b><i>file</i>...<b>]</b></code></pre></blockquote><h4><a name = "tag_001_014_949"> </a>DESCRIPTION</h4><blockquote>The<i>iconv</i>utility converts the encoding of characters in<i>file</i>from one codeset to anotherand writes the results to standard output.<p>Character encodings in either codeset may include single-byte values(for example, for the ISO 8859-1:1987 standard characters) ormulti-byte values (for example,for certain characters in the ISO 6937:1983 standard).The results ofspecifying invalid characters in the input stream(either those that are not valid members of the<i>fromcode</i>or those that have no corresponding value in<i>tocode</i>)are specified in the system documentation.</blockquote><h4><a name = "tag_001_014_950"> </a>OPTIONS</h4><blockquote>The<i>iconv</i>utility supports the <b>XBD</b> specification, <a href="../xbd/utilconv.html#usg"><b>Utility Syntax Guidelines</b> </a> .The following options are supported:<dl compact><dt><b>-f </b><i>fromcode</i><dd>Identify the codeset of the input file.Valid values for<i>fromcode</i>are specified in the system documentation.<dt><b>-t </b><i>tocode</i><dd>Identify the codeset to be used for the output file.Valid values for<i>tocode</i>are specified in the system documentation.</dl></blockquote><h4><a name = "tag_001_014_951"> </a>OPERANDS</h4><blockquote>The following operands are supported:<dl compact><dt><i>file</i><dd>A pathname of the input file to be translated.If<i>file</i>is omitted, the standard input is used.</dl></blockquote><h4><a name = "tag_001_014_952"> </a>STDIN</h4><blockquote>The standard input is used only if the<i>file</i>operand is omitted.</blockquote><h4><a name = "tag_001_014_953"> </a>INPUT FILES</h4><blockquote>The input file is a text file.</blockquote><h4><a name = "tag_001_014_954"> </a>ENVIRONMENT VARIABLES</h4><blockquote>The following environment variables affect the execution of<i>iconv</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).During translation of the file, this variable is supersededby the use of the<i>fromcode</i>option-argument.<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></dl></blockquote><h4><a name = "tag_001_014_955"> </a>ASYNCHRONOUS EVENTS</h4><blockquote>Default.</blockquote><h4><a name = "tag_001_014_956"> </a>STDOUT</h4><blockquote>The standard output is a text file containing the translated data.</blockquote><h4><a name = "tag_001_014_957"> </a>STDERR</h4><blockquote>Used only for diagnostic messages.</blockquote><h4><a name = "tag_001_014_958"> </a>OUTPUT FILES</h4><blockquote>None.</blockquote><h4><a name = "tag_001_014_959"> </a>EXTENDED DESCRIPTION</h4><blockquote>None.</blockquote><h4><a name = "tag_001_014_960"> </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_961"> </a>CONSEQUENCES OF ERRORS</h4><blockquote>Default.</blockquote><h4><a name = "tag_001_014_962"> </a>APPLICATION USAGE</h4><blockquote>None.</blockquote><h4><a name = "tag_001_014_963"> </a>EXAMPLES</h4><blockquote>The following example converts the contents of file<b>mail.x400</b>from the ISO 6937:1983 standard codeset to the ISO 8859-1:1987 standard codeset,and stores the results in file<b>mail.local</b>:<pre><code>iconv -f IS6937 -t IS8859 mail.x400 > mail.local</code></pre></blockquote><h4><a name = "tag_001_014_964"> </a>FUTURE DIRECTIONS</h4><blockquote>None.</blockquote><h4><a name = "tag_001_014_965"> </a>SEE ALSO</h4><blockquote><i><a href="gencat.html">gencat</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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