Update-language-def (8) Linux Manual Page

update-language – generate hyphenation configuration for TeX engines

Synopsis

update-language(-dat,-def,-lua) [,OPTIONS /…]

Generate hyphenation configuration files language.dat, .def, .dat.lua

When called as update-language, all three configurations files are generated. Otherwise only the selected one.

-c, –conf-file=,FILE/: file giving additional hyphen specifications
-o, –output-file=,FILE/ file to write the output to
-d, –output-dir=,DIR/: directory where files are written
–checks: perform sanity checks on the generated config file
-q, –quiet: don’t write anything to the standard output during normal operation
-h, -?, –help: display this help message and exit
–version: output version information and exit

The default output directory is

,/var/lib/texmf/tex/generic/config/

The default output files are

If -o/–output-file is given, it overrides all defaults.