Virtual printer directory attributes

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Directory attributes are grouped under the _ _DIR group header attribute. These attributes store path names to various files needed to process print requests, such as translate tables, files containing header and trailer page text, downloadable font files, and temporary files.

The first character in a directory attribute name is d, and the second character designates the directory.

The following example shows some of the directory attribute values for a supported PostScript laser printer:

_ _DIR                                   DIRECTORIES
d1  Directory Containing Stage 1         /usr/lib/lpd/pio/trans1
    Translate Tables
    (data stream to intermed.)
d2  Directory Containing Stage 2         /usr/lib/lpd/pio/trans2
    Translate Tables
    (intermediate to printer)
dD  Directory Containing Dummy Device    /usr/lib/lpd/pio/
    Files For Printers Driven By,
    But Not Attached To, the dev
    Host Computer
dF  Directory Containing Flags files    /var/spool/lpd/pio/@local/flags
    (keeps track of loaded fonts)

The same attribute values are stored in the colon file as:

:053:_ _DIR::
:160:d1::/usr/lib/lpd/pio/trans1
:161:d2::/usr/lib/lpd/pio/trans2
:509:dD::/usr/lib/lpd/pio/dev
:414:dF::/var/spool/lpd/pio/@local/flags