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b686b6a420bde7f78c416b90be11db94cb789979nd<title>mod_env - Apache HTTP Server</title>
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b686b6a420bde7f78c416b90be11db94cb789979nd<div id="preamble"><h1>Apache Module mod_env</h1>
3b3b7fc78d1f5bfc2769903375050048ff41ff26nd<div class="toplang">
ad74a0524a06bfe11b7de9e3b4ce7233ab3bd3f7nd<p><span>Available Languages: </span><a href="/en/mod/mod_env.html" title="English">&nbsp;en&nbsp;</a> |
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f086b4b402fa9a2fefc7dda85de2a3cc1cd0a654rjung<a href="/tr/mod/mod_env.html" hreflang="tr" rel="alternate" title="T�rk�e">&nbsp;tr&nbsp;</a></p>
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b686b6a420bde7f78c416b90be11db94cb789979nd<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
b686b6a420bde7f78c416b90be11db94cb789979ndSSI pages</td></tr>
b686b6a420bde7f78c416b90be11db94cb789979nd<tr><th><a href="module-dict.html#Status">Status:</a></th><td>Base</td></tr>
b686b6a420bde7f78c416b90be11db94cb789979nd<tr><th><a href="module-dict.html#ModuleIdentifier">Module�Identifier:</a></th><td>env_module</td></tr>
b686b6a420bde7f78c416b90be11db94cb789979nd<tr><th><a href="module-dict.html#SourceFile">Source�File:</a></th><td>mod_env.c</td></tr></table>
b686b6a420bde7f78c416b90be11db94cb789979nd<h3>Summary</h3>
b686b6a420bde7f78c416b90be11db94cb789979nd
fd09dcc9b954fde7abde7955af4ba9a094d34d50rbowen <p>This module allows for control of internal environment variables that
fd09dcc9b954fde7abde7955af4ba9a094d34d50rbowen are used by various Apache HTTP Server modules. These variables are also
fd09dcc9b954fde7abde7955af4ba9a094d34d50rbowen provided to CGI scripts as native system environment variables, and available
9a58dc6a2b26ec128b1270cf48810e705f1a90dbsf for use in SSI pages. Environment variables may be passed from the shell
9a58dc6a2b26ec128b1270cf48810e705f1a90dbsf which invoked the <code class="program"><a href="/programs/httpd.html">httpd</a></code> process. Alternatively,
fd09dcc9b954fde7abde7955af4ba9a094d34d50rbowen environment variables may be set or unset within the configuration process.</p>
b686b6a420bde7f78c416b90be11db94cb789979nd</div>
b686b6a420bde7f78c416b90be11db94cb789979nd<div id="quickview"><h3 class="directives">Directives</h3>
b686b6a420bde7f78c416b90be11db94cb789979nd<ul id="toc">
b686b6a420bde7f78c416b90be11db94cb789979nd<li><img alt="" src="/images/down.gif" /> <a href="#passenv">PassEnv</a></li>
117c1f888a14e73cdd821dc6c23eb0411144a41cnd<li><img alt="" src="/images/down.gif" /> <a href="#setenv">SetEnv</a></li>
117c1f888a14e73cdd821dc6c23eb0411144a41cnd<li><img alt="" src="/images/down.gif" /> <a href="#unsetenv">UnsetEnv</a></li>
b686b6a420bde7f78c416b90be11db94cb789979nd</ul>
b686b6a420bde7f78c416b90be11db94cb789979nd<h3>See also</h3>
b686b6a420bde7f78c416b90be11db94cb789979nd<ul class="seealso">
b686b6a420bde7f78c416b90be11db94cb789979nd<li><a href="/env.html">Environment Variables</a></li>
fd09dcc9b954fde7abde7955af4ba9a094d34d50rbowen<li><code class="directive"><a href="/mod/mod_setenvif.html#setenvif">SetEnvIf</a></code></li>
30471a4650391f57975f60bbb6e4a90be7b284bfhumbedooh</ul><ul class="seealso"><li><a href="#comments_section">Comments</a></li></ul></div>
b686b6a420bde7f78c416b90be11db94cb789979nd
b686b6a420bde7f78c416b90be11db94cb789979nd<div class="top"><a href="#page-header"><img alt="top" src="/images/up.gif" /></a></div>
b686b6a420bde7f78c416b90be11db94cb789979nd<div class="directive-section"><h2><a name="PassEnv" id="PassEnv">PassEnv</a> <a name="passenv" id="passenv">Directive</a></h2>
b686b6a420bde7f78c416b90be11db94cb789979nd<table class="directive">
b686b6a420bde7f78c416b90be11db94cb789979nd<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Passes environment variables from the shell</td></tr>
b686b6a420bde7f78c416b90be11db94cb789979nd<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>PassEnv <var>env-variable</var> [<var>env-variable</var>]
b686b6a420bde7f78c416b90be11db94cb789979nd...</code></td></tr>
b686b6a420bde7f78c416b90be11db94cb789979nd<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host, directory, .htaccess</td></tr>
b686b6a420bde7f78c416b90be11db94cb789979nd<tr><th><a href="directive-dict.html#Override">Override:</a></th><td>FileInfo</td></tr>
b686b6a420bde7f78c416b90be11db94cb789979nd<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Base</td></tr>
b686b6a420bde7f78c416b90be11db94cb789979nd<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_env</td></tr>
b686b6a420bde7f78c416b90be11db94cb789979nd</table>
fd09dcc9b954fde7abde7955af4ba9a094d34d50rbowen <p>Specifies one or more native system environment variables to make available
fd09dcc9b954fde7abde7955af4ba9a094d34d50rbowen as internal environment variables, which are available to Apache HTTP Server modules
9a58dc6a2b26ec128b1270cf48810e705f1a90dbsf as well as propagated to CGI scripts and SSI pages. Values come from the
9a58dc6a2b26ec128b1270cf48810e705f1a90dbsf native OS environment of the shell which invoked the
fd09dcc9b954fde7abde7955af4ba9a094d34d50rbowen <code class="program"><a href="/programs/httpd.html">httpd</a></code> process.</p>
e55e60efce8a3e2139132c1d6ad9f6f0d2976614nd
e487d6c09669296f94a5190cc34586a98e624a00nd <div class="example"><h3>Example</h3><pre class="prettyprint lang-config">
e55e60efce8a3e2139132c1d6ad9f6f0d2976614nd PassEnv LD_LIBRARY_PATH
17ade6df5ec233536985eb1c130a906c725dd614humbedooh </pre>
e487d6c09669296f94a5190cc34586a98e624a00nd</div>
b686b6a420bde7f78c416b90be11db94cb789979nd
b686b6a420bde7f78c416b90be11db94cb789979nd</div>
b686b6a420bde7f78c416b90be11db94cb789979nd<div class="top"><a href="#page-header"><img alt="top" src="/images/up.gif" /></a></div>
b686b6a420bde7f78c416b90be11db94cb789979nd<div class="directive-section"><h2><a name="SetEnv" id="SetEnv">SetEnv</a> <a name="setenv" id="setenv">Directive</a></h2>
b686b6a420bde7f78c416b90be11db94cb789979nd<table class="directive">
b686b6a420bde7f78c416b90be11db94cb789979nd<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Sets environment variables</td></tr>
b686b6a420bde7f78c416b90be11db94cb789979nd<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>SetEnv <var>env-variable</var> [<var>value</var>]</code></td></tr>
b686b6a420bde7f78c416b90be11db94cb789979nd<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host, directory, .htaccess</td></tr>
b686b6a420bde7f78c416b90be11db94cb789979nd<tr><th><a href="directive-dict.html#Override">Override:</a></th><td>FileInfo</td></tr>
b686b6a420bde7f78c416b90be11db94cb789979nd<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Base</td></tr>
b686b6a420bde7f78c416b90be11db94cb789979nd<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_env</td></tr>
b686b6a420bde7f78c416b90be11db94cb789979nd</table>
9a58dc6a2b26ec128b1270cf48810e705f1a90dbsf <p>Sets an internal environment variable, which is then available to Apache
fd09dcc9b954fde7abde7955af4ba9a094d34d50rbowen HTTP Server modules, and passed on to CGI scripts and SSI pages.</p>
e55e60efce8a3e2139132c1d6ad9f6f0d2976614nd
e487d6c09669296f94a5190cc34586a98e624a00nd <div class="example"><h3>Example</h3><pre class="prettyprint lang-config">
e55e60efce8a3e2139132c1d6ad9f6f0d2976614nd SetEnv SPECIAL_PATH /foo/bin
17ade6df5ec233536985eb1c130a906c725dd614humbedooh </pre>
e487d6c09669296f94a5190cc34586a98e624a00nd</div>
b686b6a420bde7f78c416b90be11db94cb789979nd
c6e6ef7c81b1ac917bb7a994557908225bac491ecovener <p> If you omit the <var>value</var> argument, the variable is set to
c6e6ef7c81b1ac917bb7a994557908225bac491ecovener an empty string.</p>
c6e6ef7c81b1ac917bb7a994557908225bac491ecovener
c6e6ef7c81b1ac917bb7a994557908225bac491ecovener <div class="note"><p>The internal environment variables set by this directive are set
9a58dc6a2b26ec128b1270cf48810e705f1a90dbsf <em>after</em> most early request processing directives are run, such as access
c6e6ef7c81b1ac917bb7a994557908225bac491ecovener control and URI-to-filename mapping. If the environment variable you're
c6e6ef7c81b1ac917bb7a994557908225bac491ecovener setting is meant as input into this early phase of processing such as the
c6e6ef7c81b1ac917bb7a994557908225bac491ecovener <code class="directive"><a href="/mod/mod_rewrite.html#rewriterule">RewriteRule</a></code> directive, you should
9a58dc6a2b26ec128b1270cf48810e705f1a90dbsf instead set the environment variable with
c6e6ef7c81b1ac917bb7a994557908225bac491ecovener <code class="directive"><a href="/mod/mod_setenvif.html#setenvif">SetEnvIf</a></code>.</p>
fd09dcc9b954fde7abde7955af4ba9a094d34d50rbowen </div>
fd09dcc9b954fde7abde7955af4ba9a094d34d50rbowen
fd09dcc9b954fde7abde7955af4ba9a094d34d50rbowen
fd09dcc9b954fde7abde7955af4ba9a094d34d50rbowen<h3>See also</h3>
b686b6a420bde7f78c416b90be11db94cb789979nd<ul>
b686b6a420bde7f78c416b90be11db94cb789979nd<li><a href="/env.html">Environment Variables</a></li>
b686b6a420bde7f78c416b90be11db94cb789979nd</ul>
b686b6a420bde7f78c416b90be11db94cb789979nd</div>
b686b6a420bde7f78c416b90be11db94cb789979nd<div class="top"><a href="#page-header"><img alt="top" src="/images/up.gif" /></a></div>
b686b6a420bde7f78c416b90be11db94cb789979nd<div class="directive-section"><h2><a name="UnsetEnv" id="UnsetEnv">UnsetEnv</a> <a name="unsetenv" id="unsetenv">Directive</a></h2>
b686b6a420bde7f78c416b90be11db94cb789979nd<table class="directive">
b686b6a420bde7f78c416b90be11db94cb789979nd<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Removes variables from the environment</td></tr>
b686b6a420bde7f78c416b90be11db94cb789979nd<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>UnsetEnv <var>env-variable</var> [<var>env-variable</var>]
b686b6a420bde7f78c416b90be11db94cb789979nd...</code></td></tr>
b686b6a420bde7f78c416b90be11db94cb789979nd<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host, directory, .htaccess</td></tr>
b686b6a420bde7f78c416b90be11db94cb789979nd<tr><th><a href="directive-dict.html#Override">Override:</a></th><td>FileInfo</td></tr>
fd09dcc9b954fde7abde7955af4ba9a094d34d50rbowen<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Base</td></tr>
e55e60efce8a3e2139132c1d6ad9f6f0d2976614nd<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_env</td></tr>
e55e60efce8a3e2139132c1d6ad9f6f0d2976614nd</table>
e487d6c09669296f94a5190cc34586a98e624a00nd <p>Removes one or more internal environment variables from those passed
e55e60efce8a3e2139132c1d6ad9f6f0d2976614nd on to CGI scripts and SSI pages.</p>
17ade6df5ec233536985eb1c130a906c725dd614humbedooh
e487d6c09669296f94a5190cc34586a98e624a00nd <div class="example"><h3>Example</h3><pre class="prettyprint lang-config">
b686b6a420bde7f78c416b90be11db94cb789979nd UnsetEnv LD_LIBRARY_PATH
b686b6a420bde7f78c416b90be11db94cb789979nd </pre>
b686b6a420bde7f78c416b90be11db94cb789979nd</div>
3b3b7fc78d1f5bfc2769903375050048ff41ff26nd
ad74a0524a06bfe11b7de9e3b4ce7233ab3bd3f7nd</div>
0066eddda7203f6345b56f77d146a759298dc635gryzor</div>
7f5b59ccc63c0c0e3e678a168f09ee6a2f51f9d0nd<div class="bottomlang">
f3ec420152ca921e4c1ce77782f51b53f659018dnd<p><span>Available Languages: </span><a href="/en/mod/mod_env.html" title="English">&nbsp;en&nbsp;</a> |
f086b4b402fa9a2fefc7dda85de2a3cc1cd0a654rjung<a href="/fr/mod/mod_env.html" hreflang="fr" rel="alternate" title="Fran�ais">&nbsp;fr&nbsp;</a> |
727872d18412fc021f03969b8641810d8896820bhumbedooh<a href="/ja/mod/mod_env.html" hreflang="ja" rel="alternate" title="Japanese">&nbsp;ja&nbsp;</a> |
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727872d18412fc021f03969b8641810d8896820bhumbedooh<a href="/tr/mod/mod_env.html" hreflang="tr" rel="alternate" title="T�rk�e">&nbsp;tr&nbsp;</a></p>
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