Man page 1 : fmtutil

fmtutil - utility for maintaining TeX format files

fmtutil-sys - utility for maintaining TeX format files system-wide

fmtutil [ OPTION... ] COMMAND

fmtutil-sys [ OPTION... ] COMMAND

fmtutil is used to create or recreate format and hyphenation files or show information about format files.

COMMAND is one of:

--all recreate all format files

--byengine enginename (re)create formats that depend on the engine enginename

--byfmt formatname (re)create the format for format formatname

--byhyphen hyphenfile (re)create formats that depend on the hyphenation file hyphenfile

--help print a summary of commands and options

--missing create any missing format files

--refresh recreate only existing format files

--showhyphen formatname print the name of the hyphenation file for the format formatname

--enablefmt formatname enable formatname in config file

--disablefmt formatname disable formatname in config file

--listcfg list (enabled and disabled) configurations, filtered to available formats

--catcfg output the content of the config file

--edit edit fmtutil.cnf file (disabled in Debian)

--version show version info

--cnffile file specify the configuration file fmtutil should use

--dolinks (not implemented, just for compatibility)

--fmtdir directory set the destination directory for format files generated by fmtutil to directory

--force (not implemented, just for compatibility)

--quiet (not implemented, just for compatibility)

--test (not implemented, just for compatibility)

fmtutil.cnf default configuration file

/etc/texmf/fmt.d/ Debian-specific directory for configuration file snippets

kpsewhich(1), update-fmtutil(1)

None known, but report any bugs found to <> (mailing list).

fmtutil was written by Thomas Esser <> and is in the public domain.

This manual page was written by C.M. Connelly <>, for the Debian GNU/Linux system and later slightly adapted for the teTeX 3 release.