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F252897_rotatelogs.xml
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<?xml version='1.0' encoding='UTF-8' ?>
<!DOCTYPE manualpage SYSTEM "../style/manualpage.dtd">
<?xml-stylesheet type="text/xsl" href="../style/manual.en.xsl"?>
<manualpage metafile="rotatelogs.xml.meta">
<parentdocument href="./">Programs</parentdocument>
<title>rotatelogs - Piped logging program to rotate Apache logs</title>
<summary>
<p><code>rotatelogs</code> is a simple program for use in
conjunction with Apache's piped logfile feature. For example:</p>
<example>
CustomLog "|bin/rotatelogs /var/logs/logfile 86400" common
</example>
<p>This creates the files /var/logs/logfile.nnnn where nnnn is
the system time at which the log nominally starts (this time
will always be a multiple of the rotation time, so you can
synchronize cron scripts with it). At the end of each rota-
tion time (here after 24 hours) a new log is started.</p>
<example>
CustomLog "|bin/rotatelogs /var/logs/logfile 5M" common
</example>
<p>This configuration will rotate the logfile whenever it reaches
a size of 5 megabytes.</p>
</summary>
<section id="synopsis"><title>Synopsis</title>
<p><code><strong>rotatelogs</strong> <var>logfile</var>
[ <var>rotationtime</var> [ <var>offset</var> ]] |
[ <var>filesize</var>M ]</code></p>
</section>
<section id="options"><title>Options</title>
<dl>
<dt><code><var>logfile</var></code></dt>
<dd>The path plus basename of the logfile. If <var>logfile</var>
includes any '%' characters, it is treated as a format string for
<code>strftime(3)</code>. Otherwise, the suffix
<var>.nnnnnnnnnn</var> is automatically added and is the time in
seconds. Both formats compute the start time from the beginning of
the current period.</dd>
<dt><code><var>rotationtime</var></code></dt>
<dd>The time between log file rotations in seconds.</dd>
<dt><code><var>offset</var></code></dt>
<dd>The number of minutes offset from UTC. If omitted, zero is
assumed and UTC is used. For example, to use local time in the zone
UTC -5 hours, specify a value of <code>-300</code> for this argument.</dd>
<dt><code><var>filesize</var>M</code></dt>
<dd>The maximum file size in megabytes followed by the letter
<code>M</code> to specify size rather than time. Use this parameter
in place of both rotationtime and offset.</dd>
</dl>
</section>
<section id="portability"><title>Portability</title>
<p>The following logfile format string substitutions should be
supported by all <code>strftime(3)</code> implementations, see
the <code>strftime(3)</code> man page for library-specific
extensions.</p>
<table border="1" style="zebra">
<tr><td><code>%A</code></td><td>full weekday name (localized)</td></tr>
<tr><td><code>%a</code></td><td>3-character weekday name (localized)</td></tr>
<tr><td><code>%B</code></td><td>full month name (localized)</td></tr>
<tr><td><code>%b</code></td><td>3-character month name (localized)</td></tr>
<tr><td><code>%c</code></td><td>date and time (localized)</td></tr>
<tr><td><code>%d</code></td><td>2-digit day of month</td></tr>
<tr><td><code>%H</code></td><td>2-digit hour (24 hour clock)</td></tr>
<tr><td><code>%I</code></td><td>2-digit hour (12 hour clock)</td></tr>
<tr><td><code>%j</code></td><td>3-digit day of year</td></tr>
<tr><td><code>%M</code></td><td>2-digit minute</td></tr>
<tr><td><code>%m</code></td><td>2-digit month</td></tr>
<tr><td><code>%p</code></td><td>am/pm of 12 hour clock (localized)</td></tr>
<tr><td><code>%S</code></td><td>2-digit second</td></tr>
<tr><td><code>%U</code></td><td>2-digit week of year
(Sunday first day of week)</td></tr>
<tr><td><code>%W</code></td><td>2-digit week of year
(Monday first day of week)</td></tr>
<tr><td><code>%w</code></td><td>1-digit weekday
(Sunday first day of week)</td></tr>
<tr><td><code>%X</code></td><td>time (localized)</td></tr>
<tr><td><code>%x</code></td><td>date (localized)</td></tr>
<tr><td><code>%Y</code></td><td>4-digit year</td></tr>
<tr><td><code>%y</code></td><td>2-digit year</td></tr>
<tr><td><code>%Z</code></td><td>time zone name</td></tr>
<tr><td><code>%%</code></td><td>literal `%'</td></tr>
</table>
</section>
</manualpage>