| .\" |
| .\" cupsd-helper man page for CUPS. |
| .\" |
| .\" Copyright 2007-2019 by Apple Inc. |
| .\" Copyright 1997-2006 by Easy Software Products. |
| .\" |
| .\" Licensed under Apache License v2.0. See the file "LICENSE" for more |
| .\" information. |
| .\" |
| .TH cupsd-helper 8 "CUPS" "26 April 2019" "Apple Inc." |
| .SH NAME |
| cupsd\-helper \- cupsd helper programs (deprecated) |
| .SH SYNOPSIS |
| .B cups\-deviced |
| .I request-id |
| .I limit |
| .I user-id |
| .I options |
| .br |
| .B cups\-driverd |
| .B cat |
| .I ppd-name |
| .br |
| .B cups\-driverd |
| .B list |
| .I request_id |
| .I limit |
| .I options |
| .br |
| .B cups\-exec |
| .I sandbox-profile |
| [ |
| .I \-g |
| .I group-id |
| ] [ |
| .I \-n |
| .I nice-value |
| ] [ |
| .I \-u |
| .I user-id |
| ] |
| .I /path/to/program |
| .I argv0 |
| .I ... |
| .I argvN |
| .SH DESCRIPTION |
| The \fBcupsd\-helper\fR programs perform long-running operations on behalf of the scheduler, |
| .BR cupsd (8). |
| The \fBcups-deviced\fR helper program runs each CUPS |
| .BR backend (7) |
| with no arguments in order to discover the available printers. |
| .LP |
| 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. |
| .LP |
| The \fBcups-exec\fR helper program runs backends, filters, and other programs. On macOS these programs are run in a secure sandbox. |
| .SH FILES |
| The \fBcups-driverd\fR program looks for PPD and driver information files in the following directories: |
| .nf |
| |
| \fI/Library/Printers\fR |
| \fI/opt/share/ppd\fR |
| \fI/System/Library/Printers\fR |
| \fI/usr/local/share/ppd\fR |
| \fI/usr/share/cups/drv\fR |
| \fI/usr/share/cups/model\fR |
| \fI/usr/share/ppd\fR |
| .fi |
| .LP |
| PPD files can be compressed using the |
| .BR gzip (1) |
| program or placed in compressed |
| .BR tar (1) |
| archives to further reduce their size. |
| .LP |
| Driver information files must conform to the format defined in |
| .BR ppdcfile (5). |
| .SH 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 |
| .BR ippeveprinter (1). |
| .SH SEE ALSO |
| .BR backend (7), |
| .BR cups (1), |
| .BR cupsd (8), |
| .BR cupsd.conf (5), |
| .BR filter (7), |
| .BR ppdcfile (5), |
| CUPS Online Help (http://localhost:631/help) |
| .SH COPYRIGHT |
| Copyright \[co] 2007-2019 by Apple Inc. |