1<?xml version="1.0" encoding="ISO-8859-1"?> 2<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> 3<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en"><head><!-- 4 XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX 5 This file is generated from xml source: DO NOT EDIT 6 XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX 7 --> 8<title>mod_env - Apache HTTP Server</title> 9<link href="/style/css/manual.css" rel="stylesheet" media="all" type="text/css" title="Main stylesheet" /> 10<link href="/style/css/manual-loose-100pc.css" rel="alternate stylesheet" media="all" type="text/css" title="No Sidebar - Default font size" /> 11<link href="/style/css/manual-print.css" rel="stylesheet" media="print" type="text/css" /><link rel="stylesheet" type="text/css" href="/style/css/prettify.css" /> 12<script src="/style/scripts/prettify.min.js" type="text/javascript"> 13</script> 14 15<link href="/images/favicon.ico" rel="shortcut icon" /></head> 16<body> 17<div id="page-header"> 18<p class="menu"><a href="/mod/">Modules</a> | <a href="/mod/directives.html">Directives</a> | <a href="http://wiki.apache.org/httpd/FAQ">FAQ</a> | <a href="/glossary.html">Glossary</a> | <a href="/sitemap.html">Sitemap</a></p> 19<p class="apache">Apache HTTP Server Version 2.4</p> 20<img alt="" src="/images/feather.gif" /></div> 21<div class="up"><a href="./"><img title="<-" alt="<-" src="/images/left.gif" /></a></div> 22<div id="path"> 23<a href="http://www.apache.org/">Apache</a> > <a href="http://httpd.apache.org/">HTTP Server</a> > <a href="http://httpd.apache.org/docs/">Documentation</a> > <a href="../">Version 2.4</a> > <a href="./">Modules</a></div> 24<div id="page-content"> 25<div id="preamble"><h1>Apache Module mod_env</h1> 26<div class="toplang"> 27<p><span>Available Languages: </span><a href="/en/mod/mod_env.html" title="English"> en </a> | 28<a href="/fr/mod/mod_env.html" hreflang="fr" rel="alternate" title="Fran�ais"> fr </a> | 29<a href="/ja/mod/mod_env.html" hreflang="ja" rel="alternate" title="Japanese"> ja </a> | 30<a href="/ko/mod/mod_env.html" hreflang="ko" rel="alternate" title="Korean"> ko </a> | 31<a href="/tr/mod/mod_env.html" hreflang="tr" rel="alternate" title="T�rk�e"> tr </a></p> 32</div> 33<table class="module"><tr><th><a href="module-dict.html#Description">Description:</a></th><td>Modifies the environment which is passed to CGI scripts and 34SSI pages</td></tr> 35<tr><th><a href="module-dict.html#Status">Status:</a></th><td>Base</td></tr> 36<tr><th><a href="module-dict.html#ModuleIdentifier">Module�Identifier:</a></th><td>env_module</td></tr> 37<tr><th><a href="module-dict.html#SourceFile">Source�File:</a></th><td>mod_env.c</td></tr></table> 38<h3>Summary</h3> 39 40 <p>This module allows for control of internal environment variables that 41 are used by various Apache HTTP Server modules. These variables are also 42 provided to CGI scripts as native system environment variables, and available 43 for use in SSI pages. Environment variables may be passed from the shell 44 which invoked the <code class="program"><a href="/programs/httpd.html">httpd</a></code> process. Alternatively, 45 environment variables may be set or unset within the configuration process.</p> 46</div> 47<div id="quickview"><h3 class="directives">Directives</h3> 48<ul id="toc"> 49<li><img alt="" src="/images/down.gif" /> <a href="#passenv">PassEnv</a></li> 50<li><img alt="" src="/images/down.gif" /> <a href="#setenv">SetEnv</a></li> 51<li><img alt="" src="/images/down.gif" /> <a href="#unsetenv">UnsetEnv</a></li> 52</ul> 53<h3>See also</h3> 54<ul class="seealso"> 55<li><a href="/env.html">Environment Variables</a></li> 56<li><code class="directive"><a href="/mod/mod_setenvif.html#setenvif">SetEnvIf</a></code></li> 57</ul><ul class="seealso"><li><a href="#comments_section">Comments</a></li></ul></div> 58 59<div class="top"><a href="#page-header"><img alt="top" src="/images/up.gif" /></a></div> 60<div class="directive-section"><h2><a name="PassEnv" id="PassEnv">PassEnv</a> <a name="passenv" id="passenv">Directive</a></h2> 61<table class="directive"> 62<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Passes environment variables from the shell</td></tr> 63<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>PassEnv <var>env-variable</var> [<var>env-variable</var>] 64...</code></td></tr> 65<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host, directory, .htaccess</td></tr> 66<tr><th><a href="directive-dict.html#Override">Override:</a></th><td>FileInfo</td></tr> 67<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Base</td></tr> 68<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_env</td></tr> 69</table> 70 <p>Specifies one or more native system environment variables to make available 71 as internal environment variables, which are available to Apache HTTP Server modules 72 as well as propagated to CGI scripts and SSI pages. Values come from the 73 native OS environment of the shell which invoked the 74 <code class="program"><a href="/programs/httpd.html">httpd</a></code> process.</p> 75 76 <div class="example"><h3>Example</h3><pre class="prettyprint lang-config">PassEnv LD_LIBRARY_PATH</pre> 77</div> 78 79</div> 80<div class="top"><a href="#page-header"><img alt="top" src="/images/up.gif" /></a></div> 81<div class="directive-section"><h2><a name="SetEnv" id="SetEnv">SetEnv</a> <a name="setenv" id="setenv">Directive</a></h2> 82<table class="directive"> 83<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Sets environment variables</td></tr> 84<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>SetEnv <var>env-variable</var> [<var>value</var>]</code></td></tr> 85<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host, directory, .htaccess</td></tr> 86<tr><th><a href="directive-dict.html#Override">Override:</a></th><td>FileInfo</td></tr> 87<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Base</td></tr> 88<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_env</td></tr> 89</table> 90 <p>Sets an internal environment variable, which is then available to Apache 91 HTTP Server modules, and passed on to CGI scripts and SSI pages.</p> 92 93 <div class="example"><h3>Example</h3><pre class="prettyprint lang-config">SetEnv SPECIAL_PATH /foo/bin</pre> 94</div> 95 96 <p> If you omit the <var>value</var> argument, the variable is set to 97 an empty string.</p> 98 99 <div class="note"><p>The internal environment variables set by this directive are set 100 <em>after</em> most early request processing directives are run, such as access 101 control and URI-to-filename mapping. If the environment variable you're 102 setting is meant as input into this early phase of processing such as the 103 <code class="directive"><a href="/mod/mod_rewrite.html#rewriterule">RewriteRule</a></code> directive, you should 104 instead set the environment variable with 105 <code class="directive"><a href="/mod/mod_setenvif.html#setenvif">SetEnvIf</a></code>.</p> 106 </div> 107 108 109<h3>See also</h3> 110<ul> 111<li><a href="/env.html">Environment Variables</a></li> 112</ul> 113</div> 114<div class="top"><a href="#page-header"><img alt="top" src="/images/up.gif" /></a></div> 115<div class="directive-section"><h2><a name="UnsetEnv" id="UnsetEnv">UnsetEnv</a> <a name="unsetenv" id="unsetenv">Directive</a></h2> 116<table class="directive"> 117<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Removes variables from the environment</td></tr> 118<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>UnsetEnv <var>env-variable</var> [<var>env-variable</var>] 119...</code></td></tr> 120<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host, directory, .htaccess</td></tr> 121<tr><th><a href="directive-dict.html#Override">Override:</a></th><td>FileInfo</td></tr> 122<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Base</td></tr> 123<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_env</td></tr> 124</table> 125 <p>Removes one or more internal environment variables from those passed 126 on to CGI scripts and SSI pages.</p> 127 128 <div class="example"><h3>Example</h3><pre class="prettyprint lang-config">UnsetEnv LD_LIBRARY_PATH</pre> 129</div> 130 131</div> 132</div> 133<div class="bottomlang"> 134<p><span>Available Languages: </span><a href="/en/mod/mod_env.html" title="English"> en </a> | 135<a href="/fr/mod/mod_env.html" hreflang="fr" rel="alternate" title="Fran�ais"> fr </a> | 136<a href="/ja/mod/mod_env.html" hreflang="ja" rel="alternate" title="Japanese"> ja </a> | 137<a href="/ko/mod/mod_env.html" hreflang="ko" rel="alternate" title="Korean"> ko </a> | 138<a href="/tr/mod/mod_env.html" hreflang="tr" rel="alternate" title="T�rk�e"> tr </a></p> 139</div><div class="top"><a href="#page-header"><img src="/images/up.gif" alt="top" /></a></div><div class="section"><h2><a id="comments_section" name="comments_section">Comments</a></h2><div class="warning"><strong>Notice:</strong><br />This is not a Q&A section. Comments placed here should be pointed towards suggestions on improving the documentation or server, and may be removed again by our moderators if they are either implemented or considered invalid/off-topic. Questions on how to manage the Apache HTTP Server should be directed at either our IRC channel, #httpd, on Freenode, or sent to our <a href="http://httpd.apache.org/lists.html">mailing lists</a>.</div> 140<script type="text/javascript"><!--//--><![CDATA[//><!-- 141var comments_shortname = 'httpd'; 142var comments_identifier = 'http://httpd.apache.org/docs/2.4/mod/mod_env.html'; 143(function(w, d) { 144 if (w.location.hostname.toLowerCase() == "httpd.apache.org") { 145 d.write('<div id="comments_thread"><\/div>'); 146 var s = d.createElement('script'); 147 s.type = 'text/javascript'; 148 s.async = true; 149 s.src = 'https://comments.apache.org/show_comments.lua?site=' + comments_shortname + '&page=' + comments_identifier; 150 (d.getElementsByTagName('head')[0] || d.getElementsByTagName('body')[0]).appendChild(s); 151 } 152 else { 153 d.write('<div id="comments_thread">Comments are disabled for this page at the moment.<\/div>'); 154 } 155})(window, document); 156//--><!]]></script></div><div id="footer"> 157<p class="apache">Copyright 2014 The Apache Software Foundation.<br />Licensed under the <a href="http://www.apache.org/licenses/LICENSE-2.0">Apache License, Version 2.0</a>.</p> 158<p class="menu"><a href="/mod/">Modules</a> | <a href="/mod/directives.html">Directives</a> | <a href="http://wiki.apache.org/httpd/FAQ">FAQ</a> | <a href="/glossary.html">Glossary</a> | <a href="/sitemap.html">Sitemap</a></p></div><script type="text/javascript"><!--//--><![CDATA[//><!-- 159if (typeof(prettyPrint) !== 'undefined') { 160 prettyPrint(); 161} 162//--><!]]></script> 163</body></html>
