ETEX(1)                                                                ETEX(1)


       etex, einitex, evirtex - extended TeX


       etex [options] [commands]


       This  manual page is not meant to be exhaustive.  The complete documen-
       tation for this version of TeX can be found in the info file or  manual
       Web2C: A TeX implementation.

       e-TeX  is  the  first  concrete  result  of an international research &
       development project, the NTS Project, which was established  under  the
       aegis of DANTE e.V. during 1992. The aims of the project are to perpet-
       uate and develop the spirit and philosophy of  TeX,  whilst  respecting
       Knuth’s wish that TeX should remain frozen.

       e-TeX  can  be used in two different modes: in compatibility mode it is
       supposed  to  be  completely  interchangable  with  standard  TeX.   In
       extended  mode  several new primitives are added that facilitate (among
       other things) bidirectional typesetting.

       An extended mode format is generated  by  prefixing  the  name  of  the
       source  file  for  the  format  with an asterisk (*).  Such formats are
       often prefixed with an ‘e’, hence etex as the extended version  of  tex
       and  elatex  as  the  extended version of latex.  However, eplain is an
       exception to this rule.

       The einitex and evirtex commands are e-TeX’s analogues  to  the  initex
       and  virtex  commands.   In this installation, they are symlinks to the
       etex executable.

       e-TeX’s handling of its command-line arguments is similar  to  that  of


       This version of e-TeX understands the following command line options.

       --efmt format
              Use  format as the name of the format to be used, instead of the
              name by which e-TeX was called or a %& line.

              Print error messages in the form file:line:error which is  simi-
              lar to the way many compilers format them.

       --help Print help message and exit.

       --ini  Be  einitex, for dumping formats; this is implicitly true if the
              program is called as einitex.

       --interaction mode
              Sets the interaction mode.  The mode can be  one  of  batchmode,
              nonstopmode,  scrollmode,  and  errorstopmode.   The  meaning of
              these modes is the same as that of the corresponding  \commands.

       --ipc  Send  DVI  output  to a socket as well as the usual output file.
              Whether this option is available is the choice of the installer.

              As  --ipc,  and  starts  the  server  at  the other end as well.
              Whether this option is available is the choice of the installer.

       --jobname name
              Use  name for the job name, instead of deriving it from the name
              of the input file.

       --kpathsea-debug bitmask
              Sets path searching debugging flags according  to  the  bitmask.
              See the Kpathsea manual for details.

       --maketex fmt
              Enable mktexfmt, where fmt must be one of tex or tfm.

              Enable MLTeX extensions.

       --no-maketex fmt
              Disable mktexfmt, where fmt must be one of tex or tfm.

       --output-comment string
              Use string for the DVI file comment instead of the date.

              If the first line of the main input file begins with %& parse it
              to look for a dump name or a --translate-file option.

       --progname name
              Pretend to be program name.  This affects both the  format  used
              and the search paths.

              Enable  the filename recorder.  This leaves a trace of the files
              opened for input and output in a file with extension .fls.

              Enable the \write18{command} construct.  The command can be  any
              Bourne shell command.  This construct is normally disallowed for
              security reasons.

       --translate-file tcxname
              Use the tcxname translation table.

              Print version information and exit.


       See the Kpathsearch library documentation  (the  ‘Path  specifications’
       node)  for  precise  details of how the environment variables are used.
       The kpsewhich utility can be used to query the values of the variables.

       One  caveat:  In most e-TeX formats, you cannot use ~ in a filename you
       give directly to e-TeX, because ~ is an active character, and hence  is
       expanded,  not  taken as part of the filename.  Other programs, such as
       Metafont, do not have this problem.

              Normally, e-TeX puts its output files in the current  directory.
              If  any  output file cannot be opened there, it tries to open it
              in the directory specified in the environment variable TEXMFOUT-
              PUT.  There is no default value for that variable.  For example,
              if you say tex paper and the current directory is not  writable,
              if  TEXMFOUTPUT  has  the  value  /tmp, e-TeX attempts to create
              /tmp/paper.log (and /tmp/paper.dvi, if any output is  produced.)

              Search  path for \input and \openin files.  This should probably
              start with ‘‘.’’, so that user files  are  found  before  system
              files.   An empty path component will be replaced with the paths
              defined in the texmf.cnf file.  For example,  set  TEXINPUTS  to
              ".:/home/usr/tex:"   to   prepend   the   current  direcory  and
              ‘‘/home/user/tex’’ to the standard search path.

              Search path for font metric (.tfm) files.

              Search path for format files.

              search path for einitex internal strings.

              Command template for switching to editor.  The default,  usually
              vi, is set when e-TeX is compiled.


       The location of the files mentioned below varies from system to system.
       Use the kpsewhich utility to find their locations.

              Encoded text of e-TeX’s messages.

              Filename mapping definitions.

       *.tfm  Metric files for e-TeX’s fonts.

       *.efmt Predigested e-TeX format (.efmt) files.


       This version of e-TeX implements a number of optional  extensions.   In
       fact,  many  of these extensions conflict to a greater or lesser extent
       with the definition of e-TeX.  When such extensions  are  enabled,  the
       banner  printed when e-TeX starts is changed to print e-TeXk instead of

       This version of e-TeX fails to trap arithmetic overflow when dimensions
       are added or subtracted.  Cases where this occurs are rare, but when it
       does the generated DVI file will be invalid.


       tex(1), mf(1).

Web2C 7.4.5                    10 November 2001                        ETEX(1)

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