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DVI2TTY(1)                           General Commands Manual                           DVI2TTY(1)

NAME
       dvi2tty - preview a TeX DVI file on an ordinary ASCII terminal

SYNOPSIS
       dvi2tty [ options ] dvifile

DESCRIPTION
       dvi2tty  converts  a  TeX  DVI file to a format that is appropriate for terminals and line
       printers. The program is intended to be used for preliminary proofreading of TeX-ed  docu-
       ments.   By  default the output is directed to the terminal, possibly through a pager (de-
       pending on how the program was installed), but it can be directed to a file or a pipe.

       The output leaves much to be desired, but is still useful if you want to avoid walking  to
       the laser printer (or whatever) for each iteration of your document.
       Since  dvi2tty produces output for terminals and line printers the representation of docu-
       ments is naturally quite primitive.  In principle font changes are  totally  ignored,  but
       dvi2tty  recognizes a few mathematical and special symbols that can be displayed on an or-
       dinary ASCII terminal, such as the '+' and '-' symbol.

       If the width of the output text requires more columns than fits in one line  (cf.  the  -w
       option)  it  is  broken into several lines by dvi2tty although they will be printed as one
       line on regular TeX output devices (e.g., laser printers). To show that a broken  line  is
       really just one logical line an asterisk (``*'') in the last position means that the logi-
       cal line is continued on the next physical line output by dvi2tty.   Such  a  continuation
       line is started with a space and an asterisk in the first two columns.

       Options  may  be specified in the environment variable DVI2TTY.  Any option on the command
       line, conflicting with one in the environment, will override the one from the environment.

       Options:

       -o file
              Write output to file ``file''.

       -p list
              Print the pages chosen by list.  Numbers  refer  to  TeX  page  numbers  (known  as
              \count0).   An  example  of  format  for  list  is ``1,3:6,8'' to choose pages 1, 3
              through 6 and 8.  Negative numbers can be used exactly as in TeX,  e.g.,  -1  comes
              before -4 as in ``-p-1:-4,17''.

       -P list
              Like  -p  except that page numbers refer to the sequential ordering of the pages in
              the dvi-file.  Negative numbers don't make a lot of sense here...

       -w n   Specify terminal width n.  Valid range 16-132.  Default is 80. If your terminal has
              the ability to display in 132 columns it might be a good idea to use -w132 and tog-
              gle the terminal into this mode as output will probably look somewhat better.

       -v     Specify height of lines. Default value 450000. Allows one to adjust linespacing.

       -q     Don't pipe the output through a pager.  This may be the  default  on  some  systems
              (depending on the whims of the person installing the program).

       -e n   This  option  can  be used to influence the spacing between words.  With a negative
              value the number of spaces between words becomes less, with a positive value it be-
              comes more.  -e-11 seems to worked well.

       -f     Pipe  through  a pager, $PAGER if defined, or whatever the installer of the program
              compiled in (often ``more''). This may be the default, but it is still okay to  re-
              direct  output  with  ``>'', the pager will not be used if output is not going to a
              terminal.

       -F     Specify the pager program to be used.  This overrides the $PAGER environment  vari-
              able and the default pager.

       -Fprog Use  ``prog''  as  program  to pipe output into. Can be used to choose an alternate
              pager (e.g., ``-Fless'').

       -t     \tt fonts were used (instead of cm) to produce the dvi file.

       -a     Dvi2tty normally tries to output accented characters. With the -a option,  accented
              characters are output without the accent sign.

       -l     Mark  page  breaks  with  the two-character sequence ``^L''. The default is to mark
              them with a form-feed character.

       -c     Do not attempt to translate any characters (like the Scandinavian/latin1 mode)  ex-
              cept when running in tt-font.

       -u     Toggle option to process certain latin1 characters. Use this if your output devices
              supports latin1 characters.  Note this may interfere with -s. Best not  to  use  -u
              and -s together.

       -s     Toggle option to process the special Scandinavian characters that on most (?)  ter-
              minals in Scandinavia are mapped to ``{|}[\]''.  Note this may interfere  with  -u.
              Best not to use -u and -s together.

       -J     Auto detect NTT JTeX, ASCII pTeX, and upTeX dvi format.

       -N     Display NTT JTeX dvi.

       -A     Display ASCII pTeX dvi.

       -U     Display upTeX dvi.

       -Eenc  Set  output Japanese encoding. The enc argument 'e', 's', 'j', and 'u' denotes EUC-
              JP, Shift_JIS, ISO-2022-JP, and UTF-8, respectively.

       -bdelim
              Print the name of fonts when switching to it (and ending it). The delim argument is
              used to delimit the fontname.

FILES
       /bin/more     probably the default pager.

ENVIRONMENT
       PAGER         the pager to use.
       DVI2TTY       can be set to hold command-line options.

SEE ALSO
       TeX, dvi2ps

AUTHOR
       Original Pascal version: Svante Lindahl, Royal Institute of Technology, Stockholm
       Improved C version: Marcel Mol, MESA Consulting
       Now maintained at https://github.com/t-tk/dvi2tty/releases.

BUGS
       Blanks  between  words get lost quite easily. This is less likely if you are using a wider
       output than the default 80.

       Only one file may be specified on the command line.

                                           4 March 2021                                DVI2TTY(1)

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