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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
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<html>
<head>
  <meta name="generator" content=
  "HTML Tidy for Linux/x86 (vers 6 November 2007), see www.w3.org">

  <title>Sample Printcap Entry</title>
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  "Modular DocBook HTML Stylesheet Version 1.79">
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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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        <td width="10%" align="left" valign="bottom"><a href=
        "tutorial.htm" accesskey="P">Prev</a></td>

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  <div class="SECT1">
    <h1 class="SECT1"><a name="SAMPLEPRINTCAP" id=
    "SAMPLEPRINTCAP">4.2. Sample Printcap Entry</a></h1>

    <p>As described in the <a href="tutorial.htm#OVERVIEW">Print
    Spooling Overview</a>, the information in the <tt class=
    "FILENAME">printcap</tt> database is used control printing
    operations. While there is no RFC specifying its format or
    content, there is a strong <span class="emphasis"><i class=
    "EMPHASIS">de facto</i></span> standard for its format. For a
    complete description of the <tt class="FILENAME">printcap</tt>
    database see <a href="printcapref.htm">Printcap Database</a>.
    For a list of all of the <tt class="FILENAME">printcap</tt> and
    configuration options see <a href="optionindex.htm">Index To
    All The Configuration and Printcap Options</a>.</p>

    <p>Here is a sample printcap suitable for use by the <b class=
    "APPLICATION">LPRng</b> clients:</p>

    <div class="INFORMALEXAMPLE">
      <a name="AEN1701" id="AEN1701"></a>
      <pre class="SCREEN">
LPRng use :lp for destination (device and spool queue)
   lp:lp=lp@h4.private
   lpreal:lp=/dev/lp0

Vintage BSD uses :rp:rm for spooler queue and :lp for device
  lp:rp=lp:rm=h4.private
  lpdev:lp=/dev/lp0
</pre>
    </div>

    <p>The <tt class="LITERAL">:lp=lp@h4.private</tt> printcap
    entry tells the <span class="emphasis"><i class=
    "EMPHASIS">client</i></span> programs that jobs for the
    <b class="APPLICATION">lp</b> printer or print queue are sent
    to the <b class="APPLICATION">lp</b> print queue queue on host
    <tt class="FILENAME">h4.private</tt>. This can also be
    specified using the The <span class="emphasis"><i class=
    "EMPHASIS">legacy</i></span> BSD <tt class="LITERAL">:rp</tt>
    and <tt class="LITERAL">:rm</tt>. The <tt class=
    "LITERAL">:rp=</tt><span class="emphasis"><i class=
    "EMPHASIS">queue</i></span> option specifies the <span class=
    "emphasis"><i class="EMPHASIS">print queue</i></span>
    <tt class="LITERAL">:rm=</tt><span class="emphasis"><i class=
    "EMPHASIS">host</i></span> option specifies the host. When both
    <tt class="LITERAL">lp</tt> and <tt class="LITERAL">:rp:rm</tt>
    are present the <tt class="LITERAL">:lp</tt> option has
    precedence.</p>

    <p>On the printserver the following is a sample printcap entry
    suitable for the <b class="APPLICATION">lpd</b> server:</p>

    <div class="INFORMALEXAMPLE">
      <a name="AEN1722" id="AEN1722"></a>
      <pre class="SCREEN">
lp:
  :lp=/dev/lp0
  :sd=/var/spool/lpd/%P
  :filter=/usr/local/libexec/filters/ifhp
</pre>
    </div>

    <p>The <tt class="LITERAL">:sd=</tt><span class=
    "emphasis"><i class="EMPHASIS">directory</i></span> option
    (spool queue directory) specifies the directory where print
    jobs will be placed. The <tt class="LITERAL">%P</tt> will be
    replaced with the name of the spool queue. The <tt class=
    "LITERAL">:lp</tt> literal is now the path to the output device
    the <b class="APPLICATION">lpd</b> server will use to print the
    job. The <tt class="LITERAL">:filter</tt> literal specifies the
    filter program to use to process the job before sending to the
    output device.</p>

    <p>Here is another example of a printcap entry using the
    <tt class="LITERAL">%P</tt> notation:</p>

    <div class="INFORMALEXAMPLE">
      <a name="AEN1733" id="AEN1733"></a>
      <pre class="SCREEN">
lp:lp=%P@h4.private
</pre>
    </div>This entry will cause all jobs sent to the <tt class=
    "LITERAL">lp</tt> spool queue to be sent to the <tt class=
    "LITERAL">lp</tt> queue on <tt class="LITERAL">server</tt>.
    <tt class="LITERAL">%X</tt> strings in the printcap entries are
    expanded as shown:

    <div class="INFORMALTABLE">
      <a name="AEN1739" id="AEN1739"></a>

      <table border="1" frame="border" rules="all" class=
      "CALSTABLE">
        <col>
        <col>

        <thead>
          <tr>
            <th>Key</th>

            <th>Replaced By</th>
          </tr>
        </thead>

        <tbody>
          <tr>
            <td><tt class="LITERAL">%P</tt></td>

            <td>printcap entry primary name (printer)</td>
          </tr>

          <tr>
            <td><tt class="LITERAL">%Q</tt></td>

            <td>queue requested</td>
          </tr>

          <tr>
            <td><tt class="LITERAL">%h</tt></td>

            <td>short host name (host)</td>
          </tr>

          <tr>
            <td><tt class="LITERAL">%H</tt></td>

            <td>fully qualified host name (host.dns.whatever)</td>
          </tr>

          <tr>
            <td><tt class="LITERAL">%R</tt></td>

            <td>remote printer (rp value)</td>
          </tr>

          <tr>
            <td><tt class="LITERAL">%M</tt></td>

            <td>remote host (rm value)</td>
          </tr>

          <tr>
            <td><tt class="LITERAL">%D</tt></td>

            <td>date in YYYY-MM-DD format</td>
          </tr>
        </tbody>
      </table>
    </div>
  </div>

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