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ETEX(1) 										  ETEX(1)

NAME
       etex - extended (plain) TeX

SYNOPSIS
       etex [options] [&format] [file|\commands]

DESCRIPTION
       Run  the e-TeX typesetter on file, by default creating file.dvi.  If the file argument has
       no extension, ".tex" will be appended to it.  Instead of a filename, a set of  e-TeX  com-
       mands  can be given, the first of which must start with a backslash.  With a &format argu-
       ment e-TeX uses a different set of precompiled commands, contained in  format.fmt;  it  is
       usually better to use the -fmt format option instead.

       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  perpetuate  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  com-
       pletely	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 for-
       mat with an asterisk (*).

       e-TeX's	handling  of  its command-line arguments is similar to that of the other TeX pro-
       grams in the web2c implementation.

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

       -fmt 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.

       -enc   Enable  the  encTeX  extensions.	This option is only effective in combination with
	      -ini.  For documentation of the  encTeX  extensions  see	http://www.olsak.net/enc-
	      tex.html.

       -etex  Enable  the  e-TeX  extensions.	This option is only effective in combination with
	      -ini.

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

       -no-file-line-error
	      Disable printing error messages in the file:line:error style.

       -file-line-error-style
	      This is the old name of the -file-line-error option.

       -halt-on-error
	      Exit with an error code when an error is encountered during processing.

       -help  Print help message and exit.

       -ini   Start  in  INI  mode,  which is used to dump formats.  The INI mode can be used for
	      typesetting, but no format is preloaded, and  basic  initializations  like  setting
	      catcodes may be required.

       -interaction mode
	      Sets  the  interaction  mode.   The  mode  can  be  either  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.

       -ipc-start
	      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.

       -mktex fmt
	      Enable mktexfmt, where fmt must be either tex or tfm.

       -mltex Enable MLTeX extensions.	Only effective in combination with -ini.

       -no-mktex fmt
	      Disable mktexfmt, where fmt must be either tex or tfm.

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

       -output-directory directory
	      Write output files in directory instead of the current directory.   Look	up  input
	      files in directory first, the along the normal search path.

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

       -no-parse-first-line
	      Disable parsing of the first line of the main input file.

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

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

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

       -no-shell-escape
	      Disable  the  \write18{command}  construct,  even if it is enabled in the texmf.cnf
	      file.

       -src-specials
	      Insert source specials into the DVI file.

       -src-specials where
	      Insert source specials in certain placed of the DVI file.  where is  a  comma-sepa-
	      rated value list: cr, display, hbox, math, par, parent, or vbox.

       -translate-file tcxname
	      Use  the	tcxname  translation table to set the mapping of input characters and re-
	      mapping of output characters.

       -default-translate-file tcxname
	      Like -translate-file except that a %& line can overrule this setting.

       -version
	      Print version information and exit.

ENVIRONMENT
       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.

       TEXMFOUTPUT
	      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 envi-
	      ronment variable TEXMFOUTPUT.  There is no default value for  that  variable.   For
	      example,	if you say etex paper and the current directory is not writable, if TEXM-
	      FOUTPUT  has  the  value	/tmp,  e-TeX  attempts	to  create  /tmp/paper.log   (and
	      /tmp/paper.dvi,  if any output is produced.)  TEXMFOUTPUT is also checked for input
	      files, as TeX often generates files that need to be subsequently read;  for  input,
	      no  suffixes  (such  as  ``.tex'')  are  added by default, the input name is simply
	      checked as given.

       TEXINPUTS
	      Search path for \input and \openin files.  This should 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/user/tex:"  to  prepend the current direcory and ``/home/user/tex'' to the
	      standard search path.

       TEXFORMATS
	      Search path for format files.

       TEXPOOL
	      search path for etex internal strings.

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

       TFMFONTS
	      Search path for font metric (.tfm) files.

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

       etex.pool
	      Text file containing e-TeX's internal strings.

       texfonts.map
	      Filename mapping definitions.

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

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

NOTES
       Starting with version 1.40, pdfTeX incorporates the e-TeX extensions, so in this installa-
       tion  eTeX may be just a symbolic link to pdfTeX.  See pdftex(1).  This manual page is not
       meant to be exhaustive.	The complete documentation for this version of e-TeX can be found
       in the info manual Web2C: A TeX implementation.

BUGS
       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 e-TeX.

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

SEE ALSO
       pdftex(1), tex(1), mf(1).

AUTHORS
       e-TeX was developed by Peter Breitenlohner and the NTS team;  Peter  later  continued  its
       development outside of the team.

       TeX  was  designed  by Donald E. Knuth, who implemented it using his Web system for Pascal
       programs.  It was ported to Unix at Stanford by Howard Trickey, and at  Cornell	by  Pavel
       Curtis.	 The  version now offered with the Unix TeX distribution is that generated by the
       Web to C system (web2c), originally written by Tomas Rokicki and Tim Morgan.

       The encTeX extensions were written by Petr Olsak.

Web2C 2011				   1 March 2011 				  ETEX(1)
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