драйвер вывода groff для PostScript (groff output driver for PostScript)
Окружение (Environment)
GROFF_FONT_PATH
A list of directories in which to seek the selected output
device's directory of device and font description files.
See troff(1) and groff_font(5).
GROPS_PROLOGUE
If this is set to foo, then grops uses the file foo (in
the font path) instead of the default prologue file
prologue. The option -P overrides this environment
variable.
SOURCE_DATE_EPOCH
A timestamp (expressed as seconds since the Unix epoch) to
use as the creation timestamp in place of the current
time. The time is converted to human-readable form using
ctime(3) and recorded in a PostScript comment.
TZ The time zone to use when converting the current time (or
value of SOURCE_DATE_EPOCH) to human-readable form; see
tzset(3).
