1cupsd-helper(8) OpenPrinting cupsd-helper(8)
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6 cupsd-helper - cupsd helper programs (deprecated)
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9 cups-deviced request-id limit user-id options
10 cups-driverd cat ppd-name
11 cups-driverd list request_id limit options
12 cups-exec sandbox-profile [ -g group-id ] [ -n nice-value ] [ -u user-
13 id ] /path/to/program argv0 ... argvN
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16 The cupsd-helper programs perform long-running operations on behalf of
17 the scheduler, cupsd(8). The cups-deviced helper program runs each
18 CUPS backend(7) with no arguments in order to discover the available
19 printers.
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21 The cups-driverd helper program lists all available printer drivers, a
22 subset of "matching" printer drivers, or a copy of a specific driver
23 PPD file.
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25 The cups-exec helper program runs backends, filters, and other pro‐
26 grams. On macOS these programs are run in a secure sandbox.
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29 The cups-driverd program looks for PPD and driver information files in
30 the following directories:
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32 /Library/Printers
33 /opt/share/ppd
34 /System/Library/Printers
35 /usr/local/share/ppd
36 /usr/share/cups/drv
37 /usr/share/cups/model
38 /usr/share/ppd
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40 PPD files can be compressed using the gzip(1) program or placed in com‐
41 pressed tar(1) archives to further reduce their size.
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43 Driver information files must conform to the format defined in ppdc‐
44 file(5).
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47 CUPS printer drivers, backends, and PPD files are deprecated and will
48 no longer be supported in a future feature release of CUPS. Printers
49 that do not support IPP can be supported using applications such as
50 ippeveprinter(1).
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53 backend(7), cups(1), cupsd(8), cupsd.conf(5), filter(7), ppdcfile(5),
54 CUPS Online Help (http://localhost:631/help)
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57 Copyright © 2021-2023 by OpenPrinting.
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612021-02-28 CUPS cupsd-helper(8)