gftodvi --version (return code: 0)
GFtoDVI 3.0 (TeX Live 2015/Debian) kpathsea version 6.2.1 There is NO warranty. Redistribution of this software is covered by the terms of both the GFtoDVI copyright and the Lesser GNU General Public License. For more information about these matters, see the file named COPYING and the GFtoDVI source. Primary author of GFtoDVI: D.E. Knuth.
gftodvi --help (return code: 0)
Usage: gftodvi [OPTION]... GFNAME Translate each character in GFNAME to a page in a DVI file, which is named with the basename of GFNAME extended with `.dvi'. -overflow-label-offset=REAL override 2.1in offset for overflow labels -help display this help and exit -verbose display progress reports -version output version information and exit Email bug reports to firstname.lastname@example.org.