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9<h1 class="title">cupsd-helper(8)</h1>
10<h2 class="title"><a name="NAME">Name</a></h2>
11cupsd-helper - cupsd helper programs (deprecated)
12<h2 class="title"><a name="SYNOPSIS">Synopsis</a></h2>
13<b>cups-deviced</b>
14<i>request-id</i>
15<i>limit</i>
16<i>user-id</i>
17<i>options</i>
18<br>
19<b>cups-driverd</b>
20<b>cat</b>
21<i>ppd-name</i>
22<br>
23<b>cups-driverd</b>
24<b>list</b>
25<i>request_id</i>
26<i>limit</i>
27<i>options</i>
28<br>
29<b>cups-exec</b>
30<i>sandbox-profile</i>
31[
32<i>-g</i>
33<i>group-id</i>
34] [
35<i>-n</i>
36<i>nice-value</i>
37] [
38<i>-u</i>
39<i>user-id</i>
40]
41<i>/path/to/program</i>
42<i>argv0</i>
43<i>...</i>
44<i>argvN</i>
45<h2 class="title"><a name="DESCRIPTION">Description</a></h2>
46The <b>cupsd-helper</b> programs perform long-running operations on behalf of the scheduler,
47<b>cupsd</b>(8).
48The <b>cups-deviced</b> helper program runs each CUPS
49<b>backend</b>(7)
50with no arguments in order to discover the available printers.
51<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.
52<p>The <b>cups-exec</b> helper program runs backends, filters, and other programs. On macOS these programs are run in a secure sandbox.
53<h2 class="title"><a name="FILES">Files</a></h2>
54The <b>cups-driverd</b> program looks for PPD and driver information files in the following directories:
55<pre class="man">
56
57    <i>/Library/Printers</i>
58    <i>/opt/share/ppd</i>
59    <i>/System/Library/Printers</i>
60    <i>/usr/local/share/ppd</i>
61    <i>/usr/share/cups/drv</i>
62    <i>/usr/share/cups/model</i>
63    <i>/usr/share/ppd</i>
64</pre>
65<p>PPD files can be compressed using the
66<b>gzip</b>(1)
67program or placed in compressed
68<b>tar</b>(1)
69archives to further reduce their size.
70<p>Driver information files must conform to the format defined in
71<b>ppdcfile</b>(5).
72<h2 class="title"><a name="NOTES">Notes</a></h2>
73CUPS printer drivers, backends, and PPD files are deprecated and will no longer be supported in a future feature release of CUPS.
74Printers that do not support IPP can be supported using applications such as
75<b>ippeveprinter</b>(1).
76<h2 class="title"><a name="SEE_ALSO">See Also</a></h2>
77<b>backend</b>(7),
78<b>cups</b>(1),
79<b>cupsd</b>(8),
80<b>cupsd.conf</b>(5),
81<b>filter</b>(7),
82<b>ppdcfile</b>(5),
83CUPS Online Help (<a href="http://localhost:631/help">http://localhost:631/help</a>)
84<h2 class="title"><a name="COPYRIGHT">Copyright</a></h2>
85Copyright &copy; 2007-2019 by Apple Inc.
86
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