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<!DOCTYPE HTML> <html> <!-- SECTION: Man Pages --> <head> <link rel="stylesheet" type="text/css" href="../cups-printable.css"> <title>cupsd-helper(8)</title> </head> <body> <h1 class="title">cupsd-helper(8)</h1> <h2 class="title"><a name="NAME">Name</a></h2> cupsd-helper - cupsd helper programs (deprecated) <h2 class="title"><a name="SYNOPSIS">Synopsis</a></h2> <b>cups-deviced</b> <i>request-id</i> <i>limit</i> <i>user-id</i> <i>options</i> <br> <b>cups-driverd</b> <b>cat</b> <i>ppd-name</i> <br> <b>cups-driverd</b> <b>list</b> <i>request_id</i> <i>limit</i> <i>options</i> <br> <b>cups-exec</b> <i>sandbox-profile</i> [ <i>-g</i> <i>group-id</i> ] [ <i>-n</i> <i>nice-value</i> ] [ <i>-u</i> <i>user-id</i> ] <i>/path/to/program</i> <i>argv0</i> <i>...</i> <i>argvN</i> <h2 class="title"><a name="DESCRIPTION">Description</a></h2> The <b>cupsd-helper</b> programs perform long-running operations on behalf of the scheduler, <b>cupsd</b>(8). The <b>cups-deviced</b> helper program runs each CUPS <b>backend</b>(7) with no arguments in order to discover the available printers. <p>The <b>cups-driverd</b> helper program lists all available printer drivers, a subset of "matching" printer drivers, or a copy of a specific driver PPD file. <p>The <b>cups-exec</b> helper program runs backends, filters, and other programs. On macOS these programs are run in a secure sandbox. <h2 class="title"><a name="FILES">Files</a></h2> The <b>cups-driverd</b> program looks for PPD and driver information files in the following directories: <pre class="man"> <i>/Library/Printers</i> <i>/opt/share/ppd</i> <i>/System/Library/Printers</i> <i>/usr/local/share/ppd</i> <i>/usr/share/cups/drv</i> <i>/usr/share/cups/model</i> <i>/usr/share/ppd</i> </pre> <p>PPD files can be compressed using the <b>gzip</b>(1) program or placed in compressed <b>tar</b>(1) archives to further reduce their size. <p>Driver information files must conform to the format defined in <b>ppdcfile</b>(5). <h2 class="title"><a name="NOTES">Notes</a></h2> CUPS printer drivers, backends, and PPD files are deprecated and will no longer be supported in a future feature release of CUPS. Printers that do not support IPP can be supported using applications such as <b>ippeveprinter</b>(1). <h2 class="title"><a name="SEE_ALSO">See Also</a></h2> <b>backend</b>(7), <b>cups</b>(1), <b>cupsd</b>(8), <b>cupsd.conf</b>(5), <b>filter</b>(7), <b>ppdcfile</b>(5), CUPS Online Help (<a href="http://localhost:631/help">http://localhost:631/help</a>) <h2 class="title"><a name="COPYRIGHT">Copyright</a></h2> Copyright © 2007-2019 by Apple Inc. </body> </html>
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