tools/perl-5.8.0/doc/MHonArc/app-utilsprg.html

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<H1><a name="appendixA">Appendix: Utility Programs</a></H1>

<P>This appendix describes the additional utility programs that
are included in the MHonArc distribution.  The utility programs
are installed with <b>mhonarc</b> during the installation process.
</P>

<!--X-TOC-Start-->
<ul>
<li><a href="#mha-dbedit">mha-dbedit</a>
<li><a href="#mha-dbrecover">mha-dbrecover</a>
<ul>
<li><small><a href="#mha-dbrecover-options">Additional Options</a></small>
</ul>
<li><a href="#mha-decode">mha-decode</a>
<ul>
<li><small><a href="#mha-decode-options">Additional Options</a></small>
<li><small><a href="#mha-decode-examples">Examples</a></small>
</ul>
</ul>
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<hr>
<H2><a name="mha-dbedit">mha-dbedit</a></H2>

<P><b>mha-dbedit</b> allows modifications to be made to an archive
database without regenerating any archive pages.
</P>

<p>Typical usage:
</p>
<pre>
    shell&gt; <b>mha-dbedit -rcfile <var>res.mrc</var> -outdir <var>/path/to/archive</var></b>
</pre>

<hr>
<H2><a name="mha-dbrecover">mha-dbrecover</a></H2>

<P><b>mha-dbrecover</b> recreates an archive database from the individual
message pages.  This program is useful if an archive database gets
corrupted, or accidentally deleted.
</P>

<p>Typical usage:
</p>
<pre>
    shell&gt; <b>mha-dbrecover -outdir <var>/path/to/archive</var></b>
</pre>

<p>If the archive used different resource settings from the defaults
for controling filenames, then you must specify those settings when
invoking <b>mha-dbrecover</b>.  For example, if you are using
"<tt>shtml</tt>" for <a href="resources/htmlext.html">HTMLEXT</a>,
then you should invoke <b>mha-dbrecover</b> like the following:
</p>
<pre>
    shell&gt; <b>mha-dbrecover -htmlext shtml -outdir <var>/path/to/archive</var></b>
</pre>

<p><b>mha-dbrecover</b> will only recreate non-layout message related data.
If the archive had resource settings that were different than the
the defaults, then those resource settings must be specified when
invoking <b>mha-dbrecover</b>.  For example:
</p>
<pre>
    shell&gt; <b>mha-dbrecover -rcfile <var>res.mrc</var> -outdir <var>/path/to/archive</var></b>
</pre>

<h3><a name="mha-dbrecover-options">Additional Options</a></h3>

<p><b>mha-dbrecover</b> supports the additional command-line options:
</p>

<dl>
<dt><tt>-dbr-startnum <var>#</var></tt></dt>
<dd>The starting message number to recover data from.  This option is
    useful if you have many message files in a directory, but you only
    want to recover a subset of the files.
    If this option is not specified, the starting number is 0.
    </dd>
</dl>
<dl>
<dt><tt>-dbr-endnum <var>#</var></tt></dt>
<dd>The ending message number to recover data from.  This option is
    useful if you have many message files in a directory, but you only
    want to recover a subset of the files.
    If this option is not specified, all messages starting from
    <tt>-dbr-startnum</tt> will be recovered.
    </dd>
</dl>

<p>Using the number range options are typically not needed, but may
be useful if the archive is maintained with a
<a href="resources/maxsize.html">MAXSIZE</a> (or
<a href="resources/expireage.html">EXPIREAGE</a>),
and
<a href="resources/keeponrmm.html">KEEPONRMM</a> is active.  The
message number range options will allow you to minimize recovering
processing by having <b>mha-dbrecover</b> skip messaages that will
be dropped from the database due to the
<a href="resources/maxsize.html">MAXSIZE</a>,
or <a href="resources/expireage.html">EXPIREAGE</a>,
setting.
</p>
<p>For example, say you have an archive directory with 1000 message
pages numbered 0 through 999, and the maximum size of the archive
is 200.  The following command will make recovering more efficient
by skipping the first 800 messages since they will be dropped from
the database anyway:
</p>
<pre>
    shell&gt; <b>mha-dbrecover -dbr-startnum 800 -outdir <var>/path/to/archive</var></b>
</pre>

<table border=0 cellpadding=4>
<tr valign=top>
<td><strong>NOTE</strong></td>
<td><p>It is possible that message number order may not exactly match
date order.  You may want to increase the number range to take in
account of possible anomolies where message number order may vary from
message date order.
</p>
</td>
</tr>
</table>

<hr>
<H2><a name="mha-decode">mha-decode</a></H2>

<P><b>mha-decode</b> is a utility program unrelated to MHonArc archives.
<b>mha-decode</b> provides basic MIME decoding capabilites for
messages.
</P>
<p>If given mail folders as input, all messages within in the mail
folders will be decoded.  All message parts are written to files.  If a
filename is specified for a message part, that filename will be used
when writing the part to a file.  If no filename is specified in the
message, a unique name will be used based upon the content-type of
the message part.
</p>
<p>A single message can be decoded by using the <tt>-single</tt> option.
</p>

Only MHonArc options that affect parsing of mail folders are applicable
for <b>mha-decode</b>.  The following options are applicable:
<tt>-conlen</tt>,
<tt>-mhpattern</tt>,
<tt>-msgsep</tt>,
<tt>-noconlen</tt>,
<tt>-outdir</tt>,
<tt>-perlinc</tt>,
<tt>-rcfile</tt>,
<tt>-single</tt>,
<tt>-umask</tt>.

<h3><a name="mha-decode-options">Additional Options</a></h3>

<p><b>mha-decode</b> supports the additional command-line options:
</p>

<dl>
<dt><tt>-dcd-digest</tt></dt>
<dd>Do not parse message/rfc822 and message/news attachments.
    Normally, <b>mha-decode</b> will recursively parse message
    attachments and decode any parts contained within.  With this
    option, any message attachment encountered will be saved
    intact.
    </dd>
</dl>

<h3><a name="mha-decode-examples">Examples</a></h3>

<p>Basic usage:
</p>
<pre>
    shell&gt; <b>mha-decode inbox</b>
</pre>
<p>Use <tt>-outdir</tt> to have all decoded data placed into a
separate directory:
</p>
<pre>
    shell&gt; <b>mha-decode -outdir <var>/var/tmp</var> inbox</b>
</pre>
<p>And to decode a single message:</p>
<pre>
    shell&gt; <b>mha-decode -single <var>msg.822</var></b>
</pre>
<p>or from standard input:</p>
<pre>
    shell&gt; <b><var>some_program</var> | mha-decode -single</b>
</pre>
<p>Save out attached messages and then pass them into MHonArc
to be added to a archive:
</p>
<pre>
    shell&gt; <b>mha-decode -dcd-digest -single <var>digest</var></b>
    shell&gt; <b>mhonarc -outdir <var>/path/to/archive</var> -mhpattern '^822.*\.822$' .</b>
</pre>
<p><b>Note:</b> There is a trailing dot, '<tt>.</tt>', at the end of the
called to <b>mhonarc</b> to tell <b>mhonarc</b> to process the
current working directory.
</p>
<p><b>Note:</b> You may need to reset the
<a href="resources/mhpattern.html">MHPATTERN</a> resource if normal
input into the archive is from MH-style mail folders.
</p>

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<address>
$Date: 2002/05/03 04:30:50 $ <br>
<img align="top" src="monicon.png" alt="">
<a href="http://www.mhonarc.org"
><strong>MHonArc</strong></a><br>
Copyright &#169; 1998-1999, <a href="http://www.mhonarc.org/~ehood/"
>Earl Hood</a>, <a href="mailto:mhonarc@mhonarc.org"
>mhonarc@mhonarc.org</a><br>
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