вставлять изображения гремлинов в документы groff (embed gremlin images in groff documents)
Параметры (Options)
-? and --help display a usage message, while -v and --version
show version information; all exit afterward.
-T dev Prepare device output using output driver dev. The
default is ps. See groff(1) for a list of valid devices.
-M dir Prepend dir to the search path for gremlin files. The
default search path is the current directory, the home
directory, /usr/local/lib/groff/site-tmac, /usr/local/
share/groff/site-tmac, and /usr/local/share/groff/1.23.0/
tmac, in that order.
-F dir Search dir for subdirectories devname (name is the name of
the output driver) for the DESC file before the default
font directories /usr/local/share/groff/site-font, /usr/
local/share/groff/1.23.0/font, and /usr/lib/font.
-C Recognize .GS and .GE (and .GF) even when followed by a
character other than space or newline.