fmtutil.cnf(5)                File Formats Manual               fmtutil.cnf(5)

NAME
       fmtutil.cnf - configuration file for fmtutil

DESCRIPTION
       The fmtutil.cnf file contains the configuration information for
       fmtutil(8).  Each line contains the name of the format (e.g., ``tex'',
       ``latex'', ``omega''), the name of the engine that is used by that
       format (e.g., ``tex'', ``etex'', ``omega''), the pattern file (e.g.,
       language.dat, language.def), and any arguments (name of an .ini file).

       Fields are separated by whitespace and complete lines can be commented
       out with ``#''.  The ``pattern file'' field cannot be used to define a
       file that is used while building the format.  It tells fmtutil which
       files (separated by commas) the format creation procedure reads and it
       has an effect to the options --showhyphen and --byhyphen.  If the
       format has no way to customize hyphenation, a ``-'' can be used to
       indicate this.

NOTES
       The tex(1) and amstex(1) formats always load hyphen.tex.  No
       customization by a pattern file is available for these formats.
       Therefore, the pattern-file field for the tex and amstex is usually
       indicated to be empty (``-'').

       You can, however, build customized formats on top of plain tex(1) or
       amstex(1) by using bplain.tex instead of plain.tex (b for the Babel
       system). See, for example, the bplain.ini file for the bplain format).

       etex(1) loads language.def, not language.dat.

       Symbolic links to the correct engines (e.g., bplain -> tex) are
       generated by the texlinks(8) script.   Remember to run texlinks(8) if
       you run fmtutil(8) yourself, rather than using the FORMATS option in
       texconfig(8).

FILES
       fmtutil.cnf
              default configuration file

       language.dat
              hyphenation pattern file

       language.def
              hyphenation pattern file

       language.dat.lua
              hyphenation pattern file

SEE ALSO
       amstex(1), etex(1), fmtutil(8), tex(1), texconfig(8), texlinks(8).

       <https://tug.org/texlive/scripts-sys-user.html>

BUGS
       Email bug reports to <https://lists.tug.org/tex-k> (public mailing
       list).

AUTHOR
       fmtutil and fmtutil.cnf was originally written by Thomas Esser.

       This manual page was written by C.M. Connelly for the Debian GNU/Linux
       system. It is now maintained as part of TeX Live.

TeX Live                         8 March 2022                   fmtutil.cnf(5)