lprng-doc 3.8.A~rc2-3 / usr / share / doc / lprng-doc / LPRng-Reference-Multipart / checkpc.htm

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  <title>checkpc - Configuration Validation Utility</title>
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    <table summary="Header navigation table" width="100%" border=
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      <tr>
        <th colspan="3" align="center">LPRng Reference Manual: 24
        Sep 2004 (For LPRng-3.8.28)</th>
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  <div class="CHAPTER">
    <h1><a name="CHECKPC" id="CHECKPC"></a>Chapter 10. <b class=
    "APPLICATION">checkpc</b> - Configuration Validation
    Utility</h1>

    <div class="TOC">
      <dl>
        <dt><b>Table of Contents</b></dt>

        <dt>10.1. <a href=
        "checkpc.htm#AEN4847">Maintenance</a></dt>

        <dt>10.2. <a href="x4863.htm">Printcap Information</a></dt>
      </dl>
    </div>

    <p>The <b class="APPLICATION">checkpc</b> (check printcap file)
    is one of the most useful utilities in the <b class=
    "APPLICATION">LPRng</b> package.</p>

    <p>It will read all the configuration files, printcap files and
    tests whether devices are set up correctly. Optionally, it will
    also set the permissions for spool directories and device
    files. Additionally, it will truncate the accounting and log
    files to a maximum size. Another use for <b class=
    "APPLICATION">checkpc</b> is to remove old entries from queue
    directories.</p>

    <p>For a new installation, you will want to run</p>

    <div class="INFORMALEXAMPLE">
      <a name="AEN4841" id="AEN4841"></a>
      <pre class="SCREEN">
checkpc -f -V
</pre>
    </div>to set the permissions right. The <tt class=
    "LITERAL">-f</tt> flag instructs the program to correct file
    permissions. If you don't run this as <tt class=
    "LITERAL">ROOT</tt>, you'll receive a warning about that fact
    and any <code class="FUNCTION">chown(2)</code> calls will (most
    likely) fail.

    <p>The program reports everything it changes. Since it isn't
    too clever about some things (visit the man page), you should
    keep an eye on the output, and run it again if needed. If it
    keeps failing, change the permissions yourself.</p>

    <div class="SECT1">
      <h1 class="SECT1"><a name="AEN4847" id="AEN4847">10.1.
      Maintenance</a></h1>

      <p>Later, you will want to use <b class=
      "APPLICATION">checkpc</b> for the daily maintenance of your
      system. I have this line in user <tt class=
      "LITERAL">lp</tt>'s crontab:</p>

      <div class="INFORMALEXAMPLE">
        <a name="AEN4852" id="AEN4852"></a>
        <pre class="SCREEN">
32 5 * * * checkpc -t 10K -A3 -r &gt;/dev/null 2&gt;&amp;1
</pre>
      </div>This job will:

      <ol type="1">
        <li>
          <p>truncate all log and accounting files to 10KB
          (<tt class="LITERAL">-t 10K</tt>). Actually, it will keep
          the last 10K from the file, starting on a complete
          line.</p>
        </li>

        <li>
          <p>remove all stale files older than three days
          (<tt class="LITERAL">-A3 -r</tt>).</p>
        </li>
      </ol>I'm redirecting output to <tt class=
      "FILENAME">/dev/null</tt>, because <b class=
      "APPLICATION">checkpc</b> is a little noisy to my taste. (But
      too noisy is better than too silent :)
    </div>
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