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<table class="module"><tr><th><a href="module-dict.html#Description">Description:</a></th><td>Server-parsed html documents (Server Side Includes)</td></tr>
<p>SSI elements may be defined by modules other than
<code class="module"><a href="../mod/mod_include.html">mod_include</a></code>. In fact, the <code><a href="#element.exec">exec</a></code> element is provided by
<code class="module"><a href="../mod/mod_cgi.html">mod_cgi</a></code>, and will only be available if this
<p>This command controls various aspects of the parsing. The
valid attributes are:</p>
<dl>
<dt><code>echomsg</code> (<em>Apache 2.1 and later</em>)</dt>
<dd>The value is a message that is sent back to the
client if the <code><a href="#element.echo">echo</a></code> element
attempts to echo an undefined variable. This overrides any <code class="directive"><a href="#ssiundefinedecho">SSIUndefinedEcho</a></code> directives.</dd>
<dt><code>errmsg</code></dt>
<dd>The value is a message that is sent back to the
client if an error occurs while parsing the
document. This overrides any <code class="directive"><a href="#ssierrormsg">SSIErrorMsg</a></code> directives.</dd>
<dt><code>sizefmt</code></dt>
<dd>The value sets the format to be used which displaying
the size of a file. Valid values are <code>bytes</code>
for a count in bytes, or <code>abbrev</code> for a count
in Kb or Mb as appropriate, for example a size of 1024 bytes
will be printed as "1K".</dd>
<dt><code>timefmt</code></dt>
<dd>The value is a string to be used by the
<code>strftime(3)</code> library routine when printing
<p>The <code class="directive">XBitHack</code> directive controls the parsing
of ordinary html documents. This directive only affects files associated
with the <a class="glossarylink" href="../glossary.html#mime-type" title="see glossary">MIME-type</a> <code>text/html</code>. <code class="directive">XBitHack</code> can take on the following values:</p>
<dl>
<dt><code>off</code></dt>
<dd>No special treatment of executable files.</dd>
<dt><code>on</code></dt>
<dd>Any <code>text/html</code> file that has the user-execute bit
set will be treated as a server-parsed html document.</dd>
<dt><code>full</code></dt>
<dd>As for <code>on</code> but also test the group-execute bit.
If it is set, then set the <code>Last-modified</code> date of the
returned file to be the last modified time of the file. If
it is not set, then no last-modified date is sent. Setting
this bit allows clients and proxies to cache the result of
the request.
<div class="note"><h3>Note</h3>
<p>You would not want to use the full option, unless you assure the
group-execute bit is unset for every SSI script which might <code>#include</code> a CGI or otherwise produces different output on
each hit (or could potentially change on subsequent requests).</p>
</div>
</dd>
</dl>
</div>
</div>
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