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<h1 class="settitle" align="center">Summary User&rsquo;s Manual</h1>





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<a name="Summary-User-Manual"></a>
<h1 class="top">Summary User Manual</h1>

<p>This document describes the use of the NTP Project&rsquo;s <code>summary</code> program.
This document applies to version 4.2.8p15 of <code>summary</code>.
</p>
<a name="SEC_Overview"></a>
<h2 class="shortcontents-heading">Short Table of Contents</h2>

<div class="shortcontents">
<ul class="no-bullet">
<li><a name="stoc-Invoking-summary" href="#toc-Invoking-summary">1 Invoking summary</a></li>
</ul>
</div>


<table class="menu" border="0" cellspacing="0">
<tr><td align="left" valign="top">&bull; summary Description:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">Description
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#summary-Invocation" accesskey="2">summary Invocation</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">Invoking summary
</td></tr>
</table>

<hr>
<a name="summary-Invocation"></a>
<div class="header">
<p>
Up: <a href="#Top" accesskey="u" rel="up">Top</a> &nbsp; </p>
</div>
<a name="Invoking-summary"></a>
<h2 class="chapter">1 Invoking summary</h2>
<a name="index-summary"></a>
<a name="index-compute-various-stastics-from-NTP-stat-files"></a>




<p>This section was generated by <strong>AutoGen</strong>,
using the <code>agtexi-cmd</code> template and the option descriptions for the <code>summary</code> program.
</p>
<table class="menu" border="0" cellspacing="0">
<tr><td align="left" valign="top">&bull; <a href="#summary-usage" accesskey="1">summary usage</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">summary help/usage (<samp>--help</samp>)
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#summary-directory" accesskey="2">summary directory</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">directory option
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#summary-end_002ddate" accesskey="3">summary end-date</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">end-date option
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#summary-output_002ddirectory" accesskey="4">summary output-directory</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">output-directory option
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#summary-start_002ddate" accesskey="5">summary start-date</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">start-date option
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#summary-exit-status" accesskey="6">summary exit status</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">exit status
</td></tr>
</table>

<hr>
<a name="summary-usage"></a>
<div class="header">
<p>
Next: <a href="#summary-directory" accesskey="n" rel="next">summary directory</a>, Up: <a href="#summary-Invocation" accesskey="u" rel="up">summary Invocation</a> &nbsp; </p>
</div>
<a name="summary-help_002fusage-_0028_002d_002dhelp_0029"></a>
<h3 class="section">1.1 summary help/usage (<samp>--help</samp>)</h3>
<a name="index-summary-help"></a>

<p>This is the automatically generated usage text for summary.
</p>
<p>The text printed is the same whether selected with the <code>help</code> option
(<samp>--help</samp>) or the <code>more-help</code> option (<samp>--more-help</samp>).  <code>more-help</code> will print
the usage text by passing it through a pager program.
<code>more-help</code> is disabled on platforms without a working
<code>fork(2)</code> function.  The <code>PAGER</code> environment variable is
used to select the program, defaulting to <samp>more</samp>.  Both will exit
with a status code of 0.
</p>
<div class="example">
<pre class="example">summary - compute various stastics from NTP stat files - Ver. 4.2.8p15
USAGE: summary [ -&lt;flag&gt; [&lt;val&gt;] | --&lt;name&gt;[{=| }&lt;val&gt;] ]... 

        --directory=str          Directory containing stat files
        --end-date=num           End date
        --output-directory=str   Output directory
        --peer-dist-limit=float  Peer dist limit
        --skip-time-steps=float  Ignore time offsets larger that this
        --start-date=num         Start date
    -?, --help                   Display usage information and exit
        --more-help              Pass the extended usage text through a pager

Options are specified by doubled hyphens and their name or by a single
hyphen and the flag character.
</pre></div>

<table class="menu" border="0" cellspacing="0">
<tr><td align="left" valign="top">&bull; <a href="#summary-directory" accesskey="1">summary directory</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#summary-end_002ddate" accesskey="2">summary end-date</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#summary-output_002ddirectory" accesskey="3">summary output-directory</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#summary-start_002ddate" accesskey="4">summary start-date</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#summary-exit-status" accesskey="5">summary exit status</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
</table>

<hr>
<a name="summary-directory"></a>
<div class="header">
<p>
Next: <a href="#summary-end_002ddate" accesskey="n" rel="next">summary end-date</a>, Previous: <a href="#summary-usage" accesskey="p" rel="prev">summary usage</a>, Up: <a href="#summary-usage" accesskey="u" rel="up">summary usage</a> &nbsp; </p>
</div>
<a name="directory-option"></a>
<h4 class="subsection">1.1.1 directory option</h4>
<a name="index-summary_002ddirectory"></a>

<p>This is the &ldquo;directory containing stat files&rdquo; option.
This option takes a string argument.
        The directory where <code>ntpd</code> will search for .stat files generated
        by <code>ntpd</code>.
</p><hr>
<a name="summary-end_002ddate"></a>
<div class="header">
<p>
Next: <a href="#summary-output_002ddirectory" accesskey="n" rel="next">summary output-directory</a>, Previous: <a href="#summary-directory" accesskey="p" rel="prev">summary directory</a>, Up: <a href="#summary-usage" accesskey="u" rel="up">summary usage</a> &nbsp; </p>
</div>
<a name="end_002ddate-option"></a>
<h4 class="subsection">1.1.2 end-date option</h4>
<a name="index-summary_002dend_002ddate"></a>

<p>This is the &ldquo;end date&rdquo; option.
This option takes a number argument.
        Process all files with the date suffix less or equal to value of this
        option.  Defaults to today minus one day (Use <code>date -u +%Y%m%d</code>)
        to get the timestamp.
</p><hr>
<a name="summary-output_002ddirectory"></a>
<div class="header">
<p>
Next: <a href="#summary-start_002ddate" accesskey="n" rel="next">summary start-date</a>, Previous: <a href="#summary-end_002ddate" accesskey="p" rel="prev">summary end-date</a>, Up: <a href="#summary-usage" accesskey="u" rel="up">summary usage</a> &nbsp; </p>
</div>
<a name="output_002ddirectory-option"></a>
<h4 class="subsection">1.1.3 output-directory option</h4>
<a name="index-summary_002doutput_002ddirectory"></a>

<p>This is the &ldquo;output directory&rdquo; option.
This option takes a str argument.
        The output directory <code>summary</code> will write all output files to.
</p><hr>
<a name="summary-start_002ddate"></a>
<div class="header">
<p>
Next: <a href="#summary-exit-status" accesskey="n" rel="next">summary exit status</a>, Previous: <a href="#summary-output_002ddirectory" accesskey="p" rel="prev">summary output-directory</a>, Up: <a href="#summary-usage" accesskey="u" rel="up">summary usage</a> &nbsp; </p>
</div>
<a name="start_002ddate-option"></a>
<h4 class="subsection">1.1.4 start-date option</h4>
<a name="index-summary_002dstart_002ddate"></a>

<p>This is the &ldquo;start date&rdquo; option.
This option takes a num argument.
        Process all files with the date suffix more or equal to value of
        this option.  Defaults to 197000101.
</p><hr>
<a name="summary-exit-status"></a>
<div class="header">
<p>
Previous: <a href="#summary-start_002ddate" accesskey="p" rel="prev">summary start-date</a>, Up: <a href="#summary-usage" accesskey="u" rel="up">summary usage</a> &nbsp; </p>
</div>
<a name="summary-exit-status-1"></a>
<h4 class="subsection">1.1.5 summary exit status</h4>

<p>One of the following exit values will be returned:
</p><dl compact="compact">
<dt>&lsquo;<samp>0 (EXIT_SUCCESS)</samp>&rsquo;</dt>
<dd><p>Successful program execution.
</p></dd>
<dt>&lsquo;<samp>1 (EXIT_FAILURE)</samp>&rsquo;</dt>
<dd><p>The operation failed or the command syntax was not valid.
</p></dd>
</dl>
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