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etex - extended (plain) TeX


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


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
commands can be given, the first of which must start with a backslash. With a &format
argument 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
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 (*).

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


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

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

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

Disable printing error messages in the file:line:error style.

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

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.

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.

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

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

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 shell command.
This construct is normally disallowed for security reasons.

Disable the \write18{command} construct, even if it is enabled in the texmf.cnf

Insert source specials into the DVI file.

-src-specials where
Insert source specials in certain placed of the DVI file. where is a comma-
separated 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.

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 TEXMFOUTPUT. There is no default value for that variable.
For example, if you say etex 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.) 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.

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.

Search path for format files.

search path for etex internal strings.

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

Search path for font metric (.tfm) files.

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