man/cupsd-helper.man

   1 .\"
   2 .\" cupsd-helper man page for CUPS.
   3 .\"
   4 .\" Copyright 2007-2014 by Apple Inc.
   5 .\" Copyright 1997-2006 by Easy Software Products.
   6 .\"
   7 .\" Licensed under Apache License v2.0.  See the file "LICENSE" for more information.
   8 .\"
   9 .TH cupsd-helper 8 "CUPS" "15 April 2014" "Apple Inc."
  10 .SH NAME
  11 cupsd\-helper \- cupsd helper programs
  12 .SH SYNOPSIS
  13 .B cups\-deviced
  14 .I request-id
  15 .I limit
  16 .I user-id
  17 .I options
  18 .br
  19 .B cups\-driverd
  20 .B cat
  21 .I ppd-name
  22 .br
  23 .B cups\-driverd
  24 .B list
  25 .I request_id
  26 .I limit
  27 .I options
  28 .br
  29 .B cups\-exec
  30 .I sandbox-profile
  31 [
  32 .I \-g
  33 .I group-id
  34 ] [
  35 .I \-n
  36 .I nice-value
  37 ] [
  38 .I \-u
  39 .I user-id
  40 ]
  41 .I /path/to/program
  42 .I argv0
  43 .I ...
  44 .I argvN
  45 .SH DESCRIPTION
  46 The \fBcupsd\-helper\fR programs perform long-running operations on behalf of the scheduler,
  47 .BR cupsd (8).
  48 The \fBcups-deviced\fR helper program runs each CUPS
  49 .BR backend (7)
  50 with no arguments in order to discover the available printers.
  51 .LP
  52 The \fBcups-driverd\fR helper program lists all available printer drivers, a subset of "matching" printer drivers, or a copy of a specific driver PPD file.
  53 .LP
  54 The \fBcups-exec\fR helper program runs backends, filters, and other programs. On macOS these programs are run in a secure sandbox.
  55 .SH FILES
  56 The \fBcups-driverd\fR program looks for PPD and driver information files in the following directories:
  57 .nf
  58
  59     \fI/Library/Printers\fR
  60     \fI/opt/share/ppd\fR
  61     \fI/System/Library/Printers\fR
  62     \fI/usr/local/share/ppd\fR
  63     \fI/usr/share/cups/drv\fR
  64     \fI/usr/share/cups/model\fR
  65     \fI/usr/share/ppd\fR
  66 .fi
  67 .LP
  68 PPD files can be compressed using the
  69 .BR gzip (1)
  70 program or placed in compressed
  71 .BR tar (1)
  72 archives to further reduce their size.
  73 .LP
  74 Driver information files must conform to the format defined in
  75 .BR ppdcfile (5).
  76 .SH SEE ALSO
  77 .BR backend (7),
  78 .BR cups (1),
  79 .BR cupsd (8),
  80 .BR cupsd.conf (5),
  81 .BR filter (7),
  82 .BR ppdcfile (5),
  83 CUPS Online Help (http://localhost:631/help)
  84 .SH COPYRIGHT
  85 Copyright \[co] 2007-2018 by Apple Inc.