FMTUTIL(1)                       User Commands                      FMTUTIL(1)

       fmtutil  -  manage  TeX formats, Metafont bases and Metapost mems, per-
       fmtutil-sys - manage TeX formats, Metafont  bases  and  Metapost  mems,
       mktexfmt - create a TeX format, Metafont base, or Metapost mem

       fmtutil [OPTION] ... [COMMAND]
       fmtutil-sys [OPTION] ... [COMMAND]
       mktexfmt FORMAT.fmt|BASE.base|MEM.mem|FMTNAME.EXT

       fmtutil version svn36788 (2015-04-13 00:53:26 +0900)

       Rebuild and manage TeX formats, Metafont bases and MetaPost mems.

       If  the  command name ends in mktexfmt, only one format can be created.
       The only options supported are --help and --version,  and  the  command
       line  must  consist  of  either a format name, with its extension, or a
       plain name that is passed as the argument to --byfmt (see below).   The
       full  name  of  the  generated  file (if any) is written to stdout, and
       nothing else.

       If not operating in mktexfmt mode, the command line can  be  more  gen-
       eral, and multiple formats can be generated, as follows.

       --cnffile FILE
              read  FILE  instead of fmtutil.cnf (can be given multiple times,
              in which case all the files are used)

       --fmtdir DIRECTORY

              don't use engine-specific subdir of the fmtdir

              exit successfully if no format is selected

              exit successfully even if the required engine

              is missing, if it is included in the list.

              be silent

       --test (not implemented, just for compatibility)

              (not implemented, just for compatibility)

              (not implemented, just for compatibility)

       --all  recreate all format files

              create all missing format files

              recreate only existing format files

       --byengine ENGINENAME
              (re)create formats using ENGINENAME

       --byfmt FORMATNAME
              (re)create format for FORMATNAME

       --byhyphen HYPHENFILE
              (re)create formats that depend on HYPHENFILE

       --enablefmt FORMATNAME
              enable formatname in config file

       --disablefmt FORMATNAME
              disable formatname in config file

              list (enabled and disabled) configurations, filtered  to  avail-
              able formats

              output the content of the config file

       --showhyphen FORMATNAME
              print name of hyphenfile for format FORMATNAME

              show version information and exit

       --help show this message and exit

       Explanation of trees and files normally used:

              If --cnffile is specified on the command line (possibly multiple
              times), its value(s) are used.  Otherwise, fmtutil reads all the
              fmtutil.cnf files found by running `kpsewhich -all fmtutil.cnf',
              in the order returned by kpsewhich.

              In any case, if multiple fmtutil.cnf files are  found,  all  the
              format  definitions  found  in  all  the  fmtutil.cnf  files are

              Thus, if fmtutil.cnf files are present in  all  trees,  and  the
              default  layout  is used as shipped with TeX Live, the following
              files are read, in the given order.

              For fmtutil-sys:
              TEXMFSYSCONFIG $TEXLIVE/YYYY/texmf-config/web2c/fmtutil.cnf
              TEXMFSYSVAR    $TEXLIVE/YYYY/texmf-var/web2c/fmtutil.cnf
              TEXMFLOCAL     $TEXLIVE/texmf-local/web2c/fmtutil.cnf
              TEXMFDIST      $TEXLIVE/YYYY/texmf-dist/web2c/fmtutil.cnf

              For fmtutil:
              TEXMFCONFIG    $HOME/.texliveYYYY/texmf-config/web2c/fmtutil.cnf
              TEXMFVAR       $HOME/.texliveYYYY/texmf-var/web2c/fmtutil.cnf
              TEXMFHOME      $HOME/texmf/web2c/fmtutil.cnf
              TEXMFSYSCONFIG $TEXLIVE/YYYY/texmf-config/web2c/fmtutil.cnf
              TEXMFSYSVAR    $TEXLIVE/YYYY/texmf-var/web2c/fmtutil.cnf
              TEXMFLOCAL     $TEXLIVE/texmf-local/web2c/fmtutil.cnf
              TEXMFDIST      $TEXLIVE/YYYY/texmf-dist/web2c/fmtutil.cnf

              (where YYYY is the TeX Live release version).

              According to the actions, fmtutil might  write  to  one  of  the
              given  files  or  create  a  new  fmtutil.cnf, described further

       Where changes are saved:

              If config files are given on the command line,  then  the  first
              one  given  will  be  used  to save any changes from --enable or
              --disable.  If the config files are taken from kpsewhich output,
              then the algorithm is more complex:

              1)  If  $TEXMFCONFIG/web2c/fmtutil.cnf or $TEXMFHOME/web2c/fmtu-
              til.cnf appears in the list of used files, then the  one  listed
              first  by  kpsewhich  --all  (equivalently,  the one returned by
              kpsewhich fmtutil.cnf), is used.

              2) If neither of the above two are present and changes are made,
              a new config file is created in $TEXMFCONFIG/web2c/fmtutil.cnf.

              In  general,  the  idea  is  that  if a given config file is not
              writable, a higher-level one can be used.  That way, the distri-
              bution's  settings can be overridden for system-wide using TEXM-
              FLOCAL, and then system settings can be overridden again  for  a
              particular using using TEXMFHOME.

       Resolving multiple definitions of a format:

              If  a  format  is defined in more than one config file, then the
              definition coming from the first-listed fmtutil.cnf is used.

       Disabling formats:

              fmtutil.cnf files with higher priority (listed earlier) can dis-
              able  formats  mentioned  in lower priority (listed later) fmtu-
              til.cnf files by writing, e.g.,

              #! <fmtname> <enginename> <hyphen> <args>

              in the higher-priority fmtutil.cnf file.

              As an example, suppose you have want to disable the  luajitlatex
              format.   You can create the file $TEXMFCONFIG/web2c/fmtutil.cnf
              with the content

              #! luajitlatex  luajittex  language.dat,language.dat.lua  luala-

              and call fmtutil.

       fmtutil vs. fmtutil-sys (fmtutil --sys):

              When  fmtutil-sys  is  run  or  the command line option --sys is
              used, TEXMFSYSCONFIG and TEXMFSYSVAR are used instead of  TEXMF-
              CONFIG  and TEXMFVAR, respectively.  This is the primary differ-
              ence between fmtutil-sys and fmtutil.

              Other locations may be used if you  give  them  on  the  command
              line, or these trees don't exist, or you are not using the orig-
              inal TeX Live.

       Report bugs to:
       TeX Live home page: <>

TeX Live                          April 2015                        FMTUTIL(1)
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