Sindbad~EG File Manager
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>db_convert</title>
<link rel="stylesheet" href="apiReference.css" type="text/css" />
<meta name="generator" content="DocBook XSL Stylesheets V1.73.2" />
<link rel="start" href="index.html" title="Berkeley DB C++ API Reference" />
<link rel="up" href="utilities.html" title="Appendix A. Berkeley DB Command Line Utilities" />
<link rel="prev" href="db_checkpoint.html" title="db_checkpoint" />
<link rel="next" href="db_deadlock.html" title="db_deadlock" />
</head>
<body>
<div xmlns="" class="navheader">
<div class="libver">
<p>Library Version 18.1.40</p>
</div>
<table width="100%" summary="Navigation header">
<tr>
<th colspan="3" align="center">db_convert</th>
</tr>
<tr>
<td width="20%" align="left"><a accesskey="p" href="db_checkpoint.html">Prev</a> </td>
<th width="60%" align="center">Appendix A.
Berkeley DB Command Line Utilities
</th>
<td width="20%" align="right"> <a accesskey="n" href="db_deadlock.html">Next</a></td>
</tr>
</table>
<hr />
</div>
<div class="sect1" lang="en" xml:lang="en">
<div class="titlepage">
<div>
<div>
<h2 class="title" style="clear: both"><a id="db_convert"></a>db_convert</h2>
</div>
</div>
</div>
<pre class="programlisting">db_convert [-blVv] [-h home] [-P password] [-S o | v] file ... </pre>
<p>
The <span class="command"><strong>db_convert</strong></span> utility converts one or more
files and the databases they contain to a specified byte order.
If the byte order is not specified, databases are converted to
the native byte order of the machine.
</p>
<p>
The options are as follows:
</p>
<div class="itemizedlist">
<ul type="disc">
<li>
<p>
<span class="bold"><strong>-b</strong></span>
</p>
<p>
Convert the files and databases to the big endian order.
</p>
</li>
<li>
<p>
<span class="bold"><strong>-h</strong></span>
</p>
<p>
Specify a home directory for the database environment; by default, the
current working directory is used.
</p>
</li>
<li>
<p>
<span class="bold"><strong>-l</strong></span>
</p>
<p>
Convert the files and databases to the little endian order.
</p>
</li>
<li>
<p>
<span class="bold"><strong>-P</strong></span>
</p>
<p>
Specify an environment password. Although Berkeley DB utilities
overwrite password strings as soon as possible, be aware there may be
a window of vulnerability on systems where unprivileged users can see
command-line arguments or where utilities are not able to overwrite
the memory containing the command-line arguments.
</p>
</li>
<li>
<p>
<span class="bold"><strong>-V</strong></span>
</p>
<p>
Write the library version number to the standard output, and exit.
</p>
</li>
<li>
<p>
<span class="bold"><strong>-S</strong></span>
</p>
<p>
Verify the specified database before performing db_convert. The conversion
is not performed if the database is corrupted. Use this option when you
are not sure about the integrity of the database.
</p>
<div class="itemizedlist">
<ul type="circle">
<li>
<p>
<span class="bold"><strong>o</strong></span>
</p>
<p>
Skip the database checks for btree and duplicate sort order and
for hashing. See also the <span class="bold"><strong>-o</strong></span>
option for db_verify.
</p>
</li>
<li>
<p>
<span class="bold"><strong>v</strong></span>
</p>
<p>
Perform the standard verification on the database as performed by
db_verify without options.
</p>
</li>
</ul>
</div>
</li>
<li>
<p>
<span class="bold"><strong>-v</strong></span>
</p>
<p>
Run in verbose mode, displaying a message for each successful convert.
</p>
</li>
</ul>
</div>
<p>
<span class="bold"><strong>It is important to realize that Berkeley DB
database conversions are done in place, and so are potentially
destructive.</strong></span> This means that if the system crashes during
the convert procedure, or if the convert procedure runs out of disk
space, the databases may be left in an inconsistent and unrecoverable
state.
</p>
<p>
The <span class="command"><strong>db_convert</strong></span> utility may be used with a Berkeley DB environment (as
described for the <span class="bold"><strong>-h</strong></span> option, the
environment variable <span class="bold"><strong>DB_HOME</strong></span>, or
because the utility was run in a directory containing a Berkeley DB
environment). In order to avoid environment corruption when using a
Berkeley DB environment, <span class="command"><strong>db_convert</strong></span> should always be given the chance
to detach from the environment and exit gracefully. To cause
<span class="command"><strong>db_convert</strong></span> to release all environment resources and exit cleanly, send
it an interrupt signal (SIGINT).
</p>
<p>
The <span class="command"><strong>db_convert</strong></span> utility exits 0 on success, and >0 if an error
occurs.
</p>
<div class="sect2" lang="en" xml:lang="en">
<div class="titlepage">
<div>
<div>
<h3 class="title"><a id="idm139755608499248"></a>Environment Variables</h3>
</div>
</div>
</div>
<div class="sect3" lang="en" xml:lang="en">
<div class="titlepage">
<div>
<div>
<h4 class="title"><a id="idm139755608498032"></a>DB_HOME</h4>
</div>
</div>
</div>
<p>
If the <span class="bold"><strong>-h</strong></span> option is not specified and
the environment variable DB_HOME is set, it is used as the path of the
database home, as described in the
<a class="xref" href="envopen.html" title="DbEnv::open()">
<span>DbEnv::open()</span>
</a>
method.
</p>
</div>
</div>
</div>
<div class="navfooter">
<hr />
<table width="100%" summary="Navigation footer">
<tr>
<td width="40%" align="left"><a accesskey="p" href="db_checkpoint.html">Prev</a> </td>
<td width="20%" align="center">
<a accesskey="u" href="utilities.html">Up</a>
</td>
<td width="40%" align="right"> <a accesskey="n" href="db_deadlock.html">Next</a></td>
</tr>
<tr>
<td width="40%" align="left" valign="top">db_checkpoint </td>
<td width="20%" align="center">
<a accesskey="h" href="index.html">Home</a>
</td>
<td width="40%" align="right" valign="top"> db_deadlock</td>
</tr>
</table>
</div>
</body>
</html>
Sindbad File Manager Version 1.0, Coded By Sindbad EG ~ The Terrorists