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Next: <a href="Dump-Formats.html#Dump-Formats" accesskey="n" rel="next">Dump Formats</a>, Previous: <a href="List-the-Database.html#List-the-Database" accesskey="p" rel="prev">List the Database</a>, Up: <a href="mu-dbm.html#mu-dbm" accesskey="u" rel="up">mu dbm</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Function-Index.html#Function-Index" title="Index" rel="index">Index</a>]</p>
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<h4 class="subsubsection">2.17.11.5 Dump the Database</h4>
<p>The <samp>dump</samp> subcommand dumps the database to the standard output
in a format suitable for backup or sending over the network (a
version 1.0 format).
</p>
<div class="example">
<pre class="example">mu dbm dump file.db < file.dump
</pre></div>
<p>The produced file is suitable for input to the <samp>create</samp> (<samp>load</samp>) command. Among other uses, it provides an easy way to convert databases between various formats supported by Mailutils. For example this is how to convert the database file <samp>file.db</samp> to the GDBM database <samp>new.db</samp>:
</p>
<div class="example">
<pre class="example">mu dbm dump file.db | mu dbm create gdbm://new.db
</pre></div>
<p>Both <samp>list</samp> and <samp>dump</samp> subcommands share the same set of
options. In fact, they are pretty similar, except that use different
defaults. The <samp>list</samp> subcommand is designed to produce a
human-readable output, whereas the dump subcommand is oriented towards
backup purposes.
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