mirror of https://gitee.com/openkylin/cups.git
91 lines
2.2 KiB
Groff
91 lines
2.2 KiB
Groff
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.\"
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.\" cupsd-helper man page for CUPS.
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.\"
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.\" Copyright 2007-2019 by Apple Inc.
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.\" Copyright 1997-2006 by Easy Software Products.
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.\"
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.\" Licensed under Apache License v2.0. See the file "LICENSE" for more
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.\" information.
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.\"
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.TH cupsd-helper 8 "CUPS" "26 April 2019" "Apple Inc."
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.SH NAME
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cupsd\-helper \- cupsd helper programs (deprecated)
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.SH SYNOPSIS
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.B cups\-deviced
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.I request-id
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.I limit
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.I user-id
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.I options
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.br
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.B cups\-driverd
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.B cat
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.I ppd-name
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.br
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.B cups\-driverd
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.B list
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.I request_id
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.I limit
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.I options
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.br
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.B cups\-exec
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.I sandbox-profile
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[
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.I \-g
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.I group-id
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] [
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.I \-n
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.I nice-value
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] [
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.I \-u
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.I user-id
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]
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.I /path/to/program
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.I argv0
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.I ...
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.I argvN
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.SH DESCRIPTION
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The \fBcupsd\-helper\fR programs perform long-running operations on behalf of the scheduler,
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.BR cupsd (8).
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The \fBcups-deviced\fR helper program runs each CUPS
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.BR backend (7)
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with no arguments in order to discover the available printers.
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.LP
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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.
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.LP
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The \fBcups-exec\fR helper program runs backends, filters, and other programs. On macOS these programs are run in a secure sandbox.
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.SH FILES
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The \fBcups-driverd\fR program looks for PPD and driver information files in the following directories:
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.nf
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\fI/Library/Printers\fR
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\fI/opt/share/ppd\fR
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\fI/System/Library/Printers\fR
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\fI/usr/local/share/ppd\fR
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\fI/usr/share/cups/drv\fR
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\fI/usr/share/cups/model\fR
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\fI/usr/share/ppd\fR
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.fi
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.LP
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PPD files can be compressed using the
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.BR gzip (1)
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program or placed in compressed
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.BR tar (1)
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archives to further reduce their size.
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.LP
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Driver information files must conform to the format defined in
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.BR ppdcfile (5).
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.SH NOTES
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CUPS printer drivers, backends, and PPD files are deprecated and will no longer be supported in a future feature release of CUPS.
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Printers that do not support IPP can be supported using applications such as
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.BR ippeveprinter (1).
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.SH SEE ALSO
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.BR backend (7),
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.BR cups (1),
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.BR cupsd (8),
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.BR cupsd.conf (5),
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.BR filter (7),
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.BR ppdcfile (5),
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CUPS Online Help (http://localhost:631/help)
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.SH COPYRIGHT
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Copyright \[co] 2007-2019 by Apple Inc.
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