troff - typeset or format documents


     troff [-a] [-f] [-Fdir] [-i] [-mname] [-nN] [-olist]  [-raN]
     [-sN] [-Tdest] [-uN] [-z] [filename...]


     troff formats text in the filenames for typesetting or laser
     printing.  Input  to  troff  is  expected to consist of text
     interspersed with formatting  requests  and  macros.  If  no
     filename  argument is present, troff reads standard input. A
     minus sign (-) as a filename indicates that  standard  input
     should be read at that point in the list of input files.

     The output of troff is usually  piped  through  dpost(1)  to
     create a printable postscript file (see EXAMPLES).


     The following options are supported. They may appear in  any
     order, but all must appear before the first filename.

     -a    Send an ASCII approximation  of  formatted  output  to
           standard  output.   (Note:  a  rough ASCII version can
           also be printed out on ordinary terminals with an  old
           and rarely used command, /usr/bin/ta.)

     -f    Do not print a trailer after the final page of  output
           or  cause  the  postprocessor to relinquish control of
           the device.

     -Fdir Search directory dir for font width or terminal tables
           instead of the system default directory.

     -i    Read  standard  input  after  all  input   files   are

           Prepend the macro file /usr/share/lib/tmac/name to the
           input  filenames. Note: most references to macro pack-
           ages include the leading m as part of  the  name;  for
           example,     the     man(5)     macros    reside    in
           /usr/share/lib/tmac/an. The  macro  directory  can  be
           changed  by setting the TROFFMACS environment variable
           to a specific path. Be certain to include the trailing
           '/' (slash) at the end of the path.

     -nN   Number the first generated page N.

           Print only pages whose  page  numbers  appear  in  the
           comma-separated  list  of numbers and ranges.  A range
           N-M means pages N through M; an initial -N means  from
           the  beginning  to page N; and a final N- means from N
           to the end.

     -q    Quiet mode in nroff; ignored in troff.

     -raN  Set register a (one-character names only) to N.

     -sN   Stop the phototypesetter every N pages. On  some  dev-
           ices,  troff  produces  a  trailer  so  you can change
           cassettes; resume by pressing the  typesetter's  start

           Prepare output  for  typesetter  dest.  The  following
           values can be supplied for dest:

           post  A PostScript printer; this is the default value.
                 The  output  of  the  -T  option must go through
                 dpost(1) before  it  is  sent  to  a  PostScript
                 printer to obtain the proper output.

           aps   Autologic APS-5.

     -uN   Set the emboldening factor for  the  font  mounted  in
           position  3 to N. If N is missing, then set the embol-
           dening factor to 0.

     -z    Suppress formatted output.  Only  diagnostic  messages
           and messages output using the .tm request are output.


     The following operand is supported:

           The file containing text to be processed by troff.


     Example 1: Using troff

     The following example shows how to print an input text  file
     mytext, coded with formatting requests and macros. The input
     file contains equations and tables and must go  through  the
     tbl(1)  and  eqn(1)  preprocessors before it is formatted by
     troff with ms macros, processed by dpost(1), and printed  by

     tbl mytext | eqn | troff -ms | dpost | lp


           temporary file

           standard macro files

           font width tables for alternate mounted troff fonts

           terminal driving tables for nroff


     See attributes(5) for descriptions of the  following  attri-

    |       ATTRIBUTE TYPE        |       ATTRIBUTE VALUE       |
    | Availability                | SUNWdoc                     |


     checknr(1), col(1), dpost(1), eqn(1), lp(1), man(1),  nroff(
     1), tbl(1), attributes(5), man(5), me(5), ms(5)


     troff is not 8-bit clean because it is by  design  based  on
     7-bit ASCII.

     Previous documentation  incorrectly  described  the  numeric
     register  yr as being the "Last two digits of current year".
     yr is in actuality  the  number  of  years  since  1900.  To
     correctly  obtain  the  last  two digits of the current year
     through the year 2099, the definition given below of  string
     register  yy  may be included in a document and subsequently
     used to display a two-digit year. Note that any other avail-
     able  one- or two-character register name may be substituted
     for yy.

     .\" definition of new string register yy--last two digits of year
     .\" use yr (# of years since 1900) if it is < 100
     .ie \n(yr<100 .ds yy \n(yr
     .el \{             .\" else, subtract 100 from yr, store in ny
     .nr ny \n(yr-100
     .ie \n(ny>9 \{     .\" use ny if it is two digits
     .ds yy \n(ny
     .\" remove temporary number register ny
     .rr ny \}
     .el \{.ds yy 0
     .\" if ny is one digit, append it to 0
     .as yy \n(ny
     .rr ny \} \}

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