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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 de-
	      fault  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 be-

       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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