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- backend(1) Easy Software Products backend(1)
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- NNAAMMEE
- backend - cups backend transmission interfaces
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- SSYYNNOOPPSSIISS
- bbaacckkeenndd job user title num-copies options [ _f_i_l_e_n_a_m_e ]
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- DDEESSCCRRIIPPTTIIOONN
- The CUPS backend interface provides a standard method for
- sending document files to different physical interfaces.
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- Backends must be capable of reading from a filename on the
- command-line or from the standard input, copying the stan-
- dard input to a temporary file if required by the physical
- interface.
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- The command name (argv[0]) is set to the device URI of the
- destination printer.
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- EENNVVIIRROONNMMEENNTT VVAARRIIAABBLLEESS
- The following environment variables are defined by the
- CUPS server when executing the backend:
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- CHARSET
- The default text character set (typically us-ascii or
- iso-8859-1).
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- CLASS
- When a job is submitted to a printer class, contains
- the name of the destination printer class. Otherwise
- this environment variable will not be set.
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- CONTENT_TYPE
- The MIME type associated with the file (e.g. applica-
- tion/postscript).
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- CUPS_DATADIR
- The directory where data files can be found.
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- CUPS_SERVERROOT
- The root directory of the server.
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- DEVICE_URI
- The device-uri associated with the printer; this is
- provided for shell scripts which may not be able to
- get the passed argv[0] string.
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- LANG
- The default language locale (typically C or en).
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- PATH
- The standard execution path for external programs
- that may be run by the backend.
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- PPD
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- 22 June 2000 Common UNIX Printing System 1
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- backend(1) Easy Software Products backend(1)
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- The full pathname of the PostScript Printer Descrip-
- tion (PPD) file for this printer.
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- PRINTER
- The name of the printer.
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- RIP_CACHE
- The recommended amount of memory to use for Raster
- Image Processors (RIPs).
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- SOFTWARE
- The name and version number of the server (typically
- CUPS/1.1).
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- TZ
- The timezone of the server.
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- USER
- The user executing the backend, typically root; con-
- sult the cupsd.conf file for the current setting.
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- SSEEEE AALLSSOO
- cupsd(8), filter(1) CUPS Interface Design Description,
- CUPS Software Administrators Manual, CUPS Software Pro-
- grammers Manual, http://localhost:631/documentation.html
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- CCOOPPYYRRIIGGHHTT
- Copyright 1993-2003 by Easy Software Products, All Rights
- Reserved.
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- 22 June 2000 Common UNIX Printing System 2
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