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    <title>Apache module mod_env</title>
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      <h3>Apache HTTP Server Version 1.3</h3>
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    <h1 align="CENTER">Apache module mod_env</h1>

    <p>This module provides for modifying the environment which is
    passed to CGI scripts and SSI pages.</p>

    <p><a href="module-dict.html#Status"
    rel="Help"><strong>Status:</strong></a> Base<br />
     <a href="module-dict.html#SourceFile"
    rel="Help"><strong>Source File:</strong></a> mod_env.c<br />
     <a href="module-dict.html#ModuleIdentifier"
    rel="Help"><strong>Module Identifier:</strong></a>
    env_module<br />
     <a href="module-dict.html#Compatibility"
    rel="Help"><strong>Compatibility:</strong></a> Available in
    Apache 1.1 and later.</p>

    <h2>Summary</h2>

    <p>This module allows for control of the environment that will
    be provided to CGI scripts and SSI pages. Environment variables
    may be passed from the shell which invoked the httpd process.
    Alternatively, environment variables may be set or unset within
    the configuration process.</p>

    <p>For additional information, we provide a document on <a
    href="../env.html">Environment Variables in Apache</a>.</p>

    <h2>Directives</h2>

    <ul>
      <li><a href="#passenv">PassEnv</a></li>

      <li><a href="#setenv">SetEnv</a></li>

      <li><a href="#unsetenv">UnsetEnv</a></li>
    </ul>
    <hr />

    <h2><a id="passenv" name="passenv">PassEnv</a> directive</h2>
    <a href="directive-dict.html#Syntax"
    rel="Help"><strong>Syntax:</strong></a> PassEnv
    <em>env-variable</em> [<em>env-variable</em>] ...<br />
     <a href="directive-dict.html#Context"
    rel="Help"><strong>Context:</strong></a> server config, virtual
    host, directory, .htaccess<br />
     <a href="directive-dict.html#Override"
    rel="Help"><strong>Override:</strong></a> FileInfo<br />
     <a href="directive-dict.html#Status"
    rel="Help"><strong>Status:</strong></a> Base<br />
     <a href="directive-dict.html#Module"
    rel="Help"><strong>Module:</strong></a> mod_env<br />
     <a href="directive-dict.html#Compatibility"
    rel="Help"><strong>Compatibility:</strong></a> PassEnv is only
    available in Apache 1.1 and later.  Directory and .htaccess context
    is available in Apache 1.3.7 and later.

    <p>Specifies one or more environment variables to pass to CGI
    scripts and SSI pages from the environment of the shell which
    invoked the httpd process. Example:</p>
<pre>
    PassEnv LD_LIBRARY_PATH
</pre>
    <hr />

    <h2><a id="setenv" name="setenv">SetEnv</a> directive</h2>
    <a href="directive-dict.html#Syntax"
    rel="Help"><strong>Syntax:</strong></a> SetEnv <em>env-variable
    value</em><br />
     <a href="directive-dict.html#Context"
    rel="Help"><strong>Context:</strong></a> server config, virtual
    host, directory, .htaccess<br />
     <a href="directive-dict.html#Override"
    rel="Help"><strong>Override:</strong></a> FileInfo<br />
     <a href="directive-dict.html#Status"
    rel="Help"><strong>Status:</strong></a> Base<br />
     <a href="directive-dict.html#Module"
    rel="Help"><strong>Module:</strong></a> mod_env<br />
     <a href="directive-dict.html#Compatibility"
    rel="Help"><strong>Compatibility:</strong></a> SetEnv is only
    available in Apache 1.1 and later.  Directory and .htaccess context
    is available in Apache 1.3.7 and later.

    <p>Sets an environment variable, which is then passed on to CGI
    scripts and SSI pages. Example:</p>
<pre>
    SetEnv SPECIAL_PATH /foo/bin
</pre>
    <hr />

    <h2><a id="unsetenv" name="unsetenv">UnsetEnv</a>
    directive</h2>
    <a href="directive-dict.html#Syntax"
    rel="Help"><strong>Syntax:</strong></a> UnsetEnv
    <em>env-variable</em> [<em>env-variable</em>] ...<br />
     <a href="directive-dict.html#Context"
    rel="Help"><strong>Context:</strong></a> server config, virtual
    host, directory, .htaccess<br />
     <a href="directive-dict.html#Override"
    rel="Help"><strong>Override:</strong></a> FileInfo<br />
     <a href="directive-dict.html#Status"
    rel="Help"><strong>Status:</strong></a> Base<br />
     <a href="directive-dict.html#Module"
    rel="Help"><strong>Module:</strong></a> mod_env<br />
     <a href="directive-dict.html#Compatibility"
    rel="Help"><strong>Compatibility:</strong></a> UnsetEnv is only
    available in Apache 1.1 and later.  Directory and .htaccess context
    is available in Apache 1.3.7 and later.

    <p>Removes one or more environment variables from those passed
    on to CGI scripts and SSI pages. Example:</p>
<pre>
    UnsetEnv LD_LIBRARY_PATH
</pre>
        <hr />

    <h3 align="CENTER">Apache HTTP Server Version 1.3</h3>
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