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  1. <?xml version="1.0" encoding="ISO-8859-1"?>
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  8. <title>rotatelogs - Piped logging program to rotate Apache logs - Apache HTTP Server</title>
  9. <link href="../style/css/manual.css" rel="stylesheet" media="all" type="text/css" title="Main stylesheet" />
  10. <link href="../style/css/manual-loose-100pc.css" rel="alternate stylesheet" media="all" type="text/css" title="No Sidebar - Default font size" />
  11. <link href="../style/css/manual-print.css" rel="stylesheet" media="print" type="text/css" />
  12. <link href="../images/favicon.ico" rel="shortcut icon" /></head>
  13. <body id="manual-page"><div id="page-header">
  14. <p class="menu"><a href="../mod/">Modules</a> | <a href="../mod/directives.html">Directives</a> | <a href="../faq/">FAQ</a> | <a href="../glossary.html">Glossary</a> | <a href="../sitemap.html">Sitemap</a></p>
  15. <p class="apache">Apache HTTP Server Version 2.0</p>
  16. <img alt="" src="../images/feather.gif" /></div>
  17. <div class="up"><a href="./"><img title="<-" alt="<-" src="../images/left.gif" /></a></div>
  18. <div id="path">
  19. <a href="http://www.apache.org/">Apache</a> > <a href="http://httpd.apache.org/">HTTP Server</a> > <a href="http://httpd.apache.org/docs-project/">Documentation</a> > <a href="../">Version 2.0</a> > <a href="./">Programs</a></div><div id="page-content"><div id="preamble"><h1>rotatelogs - Piped logging program to rotate Apache logs</h1>
  20. <div class="toplang">
  21. <p><span>Available Languages: </span><a href="../en/programs/rotatelogs.html" title="English"> en </a></p>
  22. </div>
  23.  
  24.      <p><code>rotatelogs</code> is a simple program for use in
  25.      conjunction with Apache's piped logfile feature.  For example:</p>
  26.  
  27. <div class="example"><p><code>
  28.      CustomLog "|bin/rotatelogs /var/logs/logfile 86400" common
  29. </code></p></div>
  30.      
  31.      <p>This creates the files /var/logs/logfile.nnnn where nnnn  is
  32.      the system time at which the log nominally starts (this time
  33.      will always be a multiple of the rotation time, so  you  can
  34.      synchronize cron scripts with it).  At the end of each rota-
  35.      tion time (here after 24 hours) a new log is started.</p>
  36.  
  37. <div class="example"><p><code>     
  38.      CustomLog "|bin/rotatelogs /var/logs/logfile 5M" common
  39. </code></p></div>
  40.  
  41.      <p>This configuration will rotate the logfile whenever it reaches
  42.      a size of 5 megabytes.</p>
  43.      
  44. </div>
  45. <div id="quickview"><ul id="toc"><li><img alt="" src="../images/down.gif" /> <a href="#synopsis">Synopsis</a></li>
  46. <li><img alt="" src="../images/down.gif" /> <a href="#options">Options</a></li>
  47. <li><img alt="" src="../images/down.gif" /> <a href="#portability">Portability</a></li>
  48. </ul></div>
  49. <div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
  50. <div class="section">
  51. <h2><a name="synopsis" id="synopsis">Synopsis</a></h2>
  52.  
  53.      <p><code><strong>rotatelogs</strong> <var>logfile</var>
  54.      [ <var>rotationtime</var> [ <var>offset</var> ]] |
  55.      [ <var>filesize</var>M ]</code></p>
  56. </div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
  57. <div class="section">
  58. <h2><a name="options" id="options">Options</a></h2>
  59.  
  60. <dl>
  61.  
  62. <dt><code><var>logfile</var></code></dt>
  63.  
  64. <dd>The path plus basename of the logfile.  If <var>logfile</var>
  65. includes any '%' characters, it is treated as a format string for
  66. <code>strftime(3)</code>.  Otherwise, the suffix
  67. <var>.nnnnnnnnnn</var> is automatically added and is the time in
  68. seconds.  Both formats compute the start time from the beginning of
  69. the current period.</dd>
  70.  
  71. <dt><code><var>rotationtime</var></code></dt>
  72.  
  73. <dd>The time between log file rotations in seconds.</dd>
  74.  
  75. <dt><code><var>offset</var></code></dt>
  76.  
  77. <dd>The number of minutes offset from UTC.  If omitted, zero is
  78. assumed and UTC is used.  For example, to use local time in the zone
  79. UTC -5 hours, specify a value of <code>-300</code> for this argument.</dd>
  80.  
  81. <dt><code><var>filesize</var>M</code></dt>
  82.  
  83. <dd>The maximum file size in megabytes followed by the letter
  84. <code>M</code> to specify size rather than time.  Use this parameter
  85. in place of both rotationtime and offset.</dd>
  86. </dl>
  87. </div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
  88. <div class="section">
  89. <h2><a name="portability" id="portability">Portability</a></h2>
  90.  
  91. <p>The following logfile format string substitutions should be
  92. supported by all <code>strftime(3)</code> implementations, see
  93. the <code>strftime(3)</code> man page for library-specific
  94. extensions.</p>
  95.  
  96. <table class="bordered"><tr><td><code>%A</code></td><td>full weekday name (localized)</td></tr>
  97. <tr class="odd"><td><code>%a</code></td><td>3-character weekday name (localized)</td></tr>
  98. <tr><td><code>%B</code></td><td>full month name (localized)</td></tr>
  99. <tr class="odd"><td><code>%b</code></td><td>3-character month name (localized)</td></tr>
  100. <tr><td><code>%c</code></td><td>date and time (localized)</td></tr>
  101. <tr class="odd"><td><code>%d</code></td><td>2-digit day of month</td></tr>
  102. <tr><td><code>%H</code></td><td>2-digit hour (24 hour clock)</td></tr>
  103. <tr class="odd"><td><code>%I</code></td><td>2-digit hour (12 hour clock)</td></tr>
  104. <tr><td><code>%j</code></td><td>3-digit day of year</td></tr>
  105. <tr class="odd"><td><code>%M</code></td><td>2-digit minute</td></tr>
  106. <tr><td><code>%m</code></td><td>2-digit month</td></tr>
  107. <tr class="odd"><td><code>%p</code></td><td>am/pm of 12 hour clock (localized)</td></tr>
  108. <tr><td><code>%S</code></td><td>2-digit second</td></tr>
  109. <tr class="odd"><td><code>%U</code></td><td>2-digit week of year 
  110. (Sunday first day of week)</td></tr>
  111. <tr><td><code>%W</code></td><td>2-digit week of year 
  112. (Monday first day of week)</td></tr>
  113. <tr class="odd"><td><code>%w</code></td><td>1-digit weekday 
  114. (Sunday first day of week)</td></tr>
  115. <tr><td><code>%X</code></td><td>time (localized)</td></tr>
  116. <tr class="odd"><td><code>%x</code></td><td>date (localized)</td></tr>
  117. <tr><td><code>%Y</code></td><td>4-digit year</td></tr>
  118. <tr class="odd"><td><code>%y</code></td><td>2-digit year</td></tr>
  119. <tr><td><code>%Z</code></td><td>time zone name</td></tr>
  120. <tr class="odd"><td><code>%%</code></td><td>literal `%'</td></tr>
  121. </table>
  122.  
  123. </div></div>
  124. <div class="bottomlang">
  125. <p><span>Available Languages: </span><a href="../en/programs/rotatelogs.html" title="English"> en </a></p>
  126. </div><div id="footer">
  127. <p class="apache">Maintained by the <a href="http://httpd.apache.org/docs-project/">Apache HTTP Server Documentation Project</a></p>
  128. <p class="menu"><a href="../mod/">Modules</a> | <a href="../mod/directives.html">Directives</a> | <a href="../faq/">FAQ</a> | <a href="../glossary.html">Glossary</a> | <a href="../sitemap.html">Sitemap</a></p></div>
  129. </body></html>