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filter (7)
  • filter (1) ( Linux man: Команды и прикладные программы пользовательского уровня )
  • filter (3) ( Solaris man: Библиотечные вызовы )
  • filter (3) ( FreeBSD man: Библиотечные вызовы )
  • >> filter (7) ( Linux man: Макропакеты и соглашения )
  • Ключ filter обнаружен в базе ключевых слов.
  •  

    NAME

    filter - cups file conversion filter interface
     
    

    SYNOPSIS

    filter job user title num-copies options [ filename ]  

    DESCRIPTION

    The CUPS filter interface provides a standard method for adding support for new document types to CUPS. Each filter is capable of converting from one or more input formats to another format that can either be printed directly or piped into another filter to get it to a printable format.

    Filters must be capable of reading from a filename on the command-line or from the standard input, copying the standard input to a temporary file as required by the file format. All output must be sent to the standard output.

    The command name (argv[0]) is set to the name of the destination printer.  

    LOG MESSAGES

    Messages sent to stderr are generally logged to printer-state-message attribute and the current ErrorLog. Each line begins with a standard prefix:

    ALERT: message

    Sets the printer-state-message attribute and adds the specified message to the current ErrorLog using the "alert" log level.

    ATTR: attribute=value [attribute=value]

    Sets the named job attribute(s). Typically this will be used to set the job-remote-id attribute.

    CRIT: message

    Sets the printer-state-message attribute and adds the specified message to the current ErrorLog using the "critical" log level.

    DEBUG: message

    Sets the printer-state-message attribute and adds the specified message to the current ErrorLog using the "debug" log level.

    DEBUG2: message

    Sets the printer-state-message attribute and adds the specified message to the current ErrorLog using the "debug2" log level.

    EMERG: message

    Sets the printer-state-message attribute and adds the specified message to the current ErrorLog using the "emergency" log level.

    ERROR: message

    Sets the printer-state-message attribute and adds the specified message to the current ErrorLog using the "error" log level.

    INFO: message

    Sets the printer-state-message attribute. If the current LogLevel is set to "debug2", also adds the specified message to the current ErrorLog using the "info" log level.

    NOTICE: message

    Sets the printer-state-message attribute and adds the specified message to the current ErrorLog using the "notice" log level.

    PAGE: page-number #-copies
    PAGE: total #-pages

    Adds an entry to the current PageLog. The first form adds #-copies to the job-media-sheets-completed attribute. The second form sets the job-media-sheets-completed attribute to #-pages.

    STATE: printer-state-reason [printer-state-reason ...]
    STATE: + printer-state-reason [printer-state-reason ...]
    STATE: - printer-state-reason [printer-state-reason ...]

    Sets, adds, or removes printer-state-reason keywords to the current queue. Typically this is used to indicate media, ink, and toner conditions on a printer.

    WARNING: message

    Sets the printer-state-message attribute and adds the specified message to the current ErrorLog using the "warning" log level.

     

    ENVIRONMENT VARIABLES

    The following environment variables are defined by the CUPS server when executing the filter:

    CHARSET

    The default text character set, typically utf-8.

    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.

    CONTENT_TYPE

    The MIME type associated with the file (e.g. application/postscript).

    CUPS_DATADIR

    The directory where data files can be found.

    CUPS_SERVERROOT

    The root directory of the server.

    DEVICE_URI

    The device-uri associated with the printer.

    FINAL_CONTENT_TYPE

    The MIME type associated with the printer (e.g. application/vnd.cups-postscript).

    LANG

    The default language locale (typically C or en).

    PATH

    The standard execution path for external programs that may be run by the filter.

    PPD

    The full pathname of the PostScript Printer Description (PPD) file for this printer.

    PRINTER

    The name of the printer.

    RIP_CACHE

    The recommended amount of memory to use for Raster Image Processors (RIPs).

    SOFTWARE

    The name and version number of the server (typically CUPS/1.2).

    TZ

    The timezone of the server.

    USER

    The user executing the filter, typically "lp" or "root"; consult the cupsd.conf(5) file for the current setting.

     

    COMPATIBILITY

    While the filter interface is compatible with System V interface scripts, it will only work with the System V interface script as the only filter. Typically the interface script will be provided via the lpadmin(8) command using the -i option.  

    SEE ALSO

    backend(1), cupsd(8),
    http://localhost:631/help  

    COPYRIGHT

    Copyright 2007 by Apple Inc.


     

    Index

    NAME
    SYNOPSIS
    DESCRIPTION
    LOG MESSAGES
    ENVIRONMENT VARIABLES
    COMPATIBILITY
    SEE ALSO
    COPYRIGHT


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