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cupsd(8)                         OpenPrinting                         cupsd(8)

NAME
       cupsd - cups scheduler

SYNOPSIS
       cupsd [ -c cupsd.conf ] [ -f ] [ -F ] [ -h ] [ -l ] [ -s
       cups-files.conf ] [ -t ]

DESCRIPTION
       cupsd is the scheduler for CUPS. It implements a printing system based
       upon the Internet Printing Protocol, version 2.1, and supports most of
       the requirements for IPP Everywhere. If no options are specified on the
       command-line then the default configuration file
       /usr/local/etc/cups/cupsd.conf will be used.

OPTIONS
       -c cupsd.conf
            Uses the named cupsd.conf configuration file.

       -f   Run cupsd in the foreground; the default is to run in the
            background as a "daemon".

       -F   Run cupsd in the foreground but detach the process from the
            controlling terminal and current directory. This is useful for
            running cupsd from init(8).

       -h   Shows the program usage.

       -l   This option is passed to cupsd when it is run from launchd(8) or
            systemd(8).

       -s cups-files.conf
            Uses the named cups-files.conf configuration file.

       -t   Test the configuration file for syntax errors.

FILES
       /usr/local/etc/cups/classes.conf
       /usr/local/etc/cups/cups-files.conf
       /usr/local/etc/cups/cupsd.conf
       /usr/share/cups/mime/mime.convs
       /usr/share/cups/mime/mime.types
       /usr/local/etc/cups/printers.conf
       /usr/local/etc/cups/subscriptions.conf

CONFORMING TO
       cupsd implements all of the required IPP/2.1 attributes and operations.
       It also implements several CUPS-specific administrative operations.

EXAMPLES
       Run cupsd in the background with the default configuration file:

           cupsd

       Test a configuration file called test.conf:

           cupsd -t -c test.conf

       Run cupsd in the foreground with a test configuration file called
       test.conf:

           cupsd -f -c test.conf

SEE ALSO
       backend(7), classes.conf(5), cups(1), cups-files.conf(5), cups-lpd(8),
       cupsd.conf(5), cupsd-helper(8), cupsd-logs(8), filter(7), launchd(8),
       mime.convs(5), mime.types(5), printers.conf(5), systemd(8), CUPS Online
       Help (http://localhost:631/help)

COPYRIGHT
       Copyright (C) 2021-2023 by OpenPrinting.

2021-02-28                           CUPS                             cupsd(8)
cupsd-helper(8)                  OpenPrinting                  cupsd-helper(8)

NAME
       cupsd-helper - cupsd helper programs (deprecated)

SYNOPSIS
       cups-deviced request-id limit user-id options
       cups-driverd cat ppd-name
       cups-driverd list request_id limit options
       cups-exec sandbox-profile [ -g group-id ] [ -n nice-value ] [ -u
       user-id ] /path/to/program argv0 ...  argvN

DESCRIPTION
       The cupsd-helper programs perform long-running operations on behalf of
       the scheduler, cupsd(8).  The cups-deviced helper program runs each
       CUPS backend(7) with no arguments in order to discover the available
       printers.

       The cups-driverd helper program lists all available printer drivers, a
       subset of "matching" printer drivers, or a copy of a specific driver
       PPD file.

       The cups-exec helper program runs backends, filters, and other
       programs. On macOS these programs are run in a secure sandbox.

FILES
       The cups-driverd program looks for PPD and driver information files in
       the following directories:

           /Library/Printers
           /opt/share/ppd
           /System/Library/Printers
           /usr/local/share/ppd
           /usr/share/cups/drv
           /usr/share/cups/model
           /usr/share/ppd

       PPD files can be compressed using the gzip(1) program or placed in
       compressed tar(1) archives to further reduce their size.

       Driver information files must conform to the format defined in
       ppdcfile(5).

NOTES
       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
       ippeveprinter(1).

SEE ALSO
       backend(7), cups(1), cupsd(8), cupsd.conf(5), filter(7), ppdcfile(5),
       CUPS Online Help (http://localhost:631/help)

COPYRIGHT
       Copyright (C) 2021-2023 by OpenPrinting.

2021-02-28                           CUPS                      cupsd-helper(8)