code: plan9front

ref: 5622b0bbd878dbc34045cc6fd37cffa64461eabe
dir: /sys/src/cmd/postscript/hardcopy/README/

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Redirect output of the print operator to paper. Particularly useful if
you're trying to extract information from a printer, but you don't have
access to the data the printer returns to the host.

For example,

	FontDirectory {pop ==} forall

names all the fonts registered in the FontDirectory dictionary. Simple,
but only if you can read the data returned to the host by the printer.