NAME

troff - typeset or format documents

SYNOPSIS

troff [-afizV] [-daS] [-da=S] [-Ffontdir] [-mname] [-nN] [-olist] [-raN] [-ra=N] [-sN] [-Tdevice] [-uN] [-xN]

DESCRIPTION

troff formats text in the named files for printing on phototypesetter devices. Its capabilities are described in the Nroff/Troff user's manual.

troff generates output in an intermediate ASCII format which must be passed through a device-dependent post-processor before it can be printed; see the description of the -T option and the example below.

If no file argument is present, the standard input is read. An argument consisting of a single minus (-) is taken to be a file name corresponding to the standard input. The options, which may appear in any order so long as they appear before the files, are:

-olist: 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.
-nN: Number first generated page N.
-sN: Stop every N pages. Troff will stop the phototypesetter every N pages, produce a trailer to allow changing cassettes, and resume when the typesetter's start button is pressed.
-mname: Prepend the macro file /usr/ucblib/doctools/tmac/tmac.name to the input files.
-raN: Set register a (one-character) to N.
-ra=N: Set register a (may be more than one character) to N.
-daN: Define string a (one-character) to S.
-da=N: Define string a (may be more than one character) to S.
-i: Read standard input after the input files are exhausted.
-z: Check syntax only; do not generate any output except for error messages.
-Ffontdir: Use the directory fontdir to locate font files.
-u N: Set the emboldening amount, i.e. the number of times a character is printed to simulate bold output, to N.
-Tdevice: Prepare output for the specified device. Available devices are:

ps: for PostScript output with 72,000 dpi and AFM fonts (default), with dpost as post-processor
psmed: for PostScript output with 3,600 dpi and AFM fonts, with dpost as post-processor
pslow: for PostScript output with 432 dpi and AFM fonts, with dpost as post-processor
post: for PostScript output with 720 dpi and ditroff fonts, with dpost as post-processor
html: for HTML output, with dhtml as post-processor

-f: Refrain from feeding out paper and stopping phototypesetter at the end of the run.
-a: Send a printable text-only approximation of the results to the standard output.
-xN: Enable extensions to previous versions of troff at level N. Level 0 disables any extensions; level 1 enables all extensions except for long requests and request arguments; level 2 enables these in addition but executes short requests which are prefixes of undefined long requests; level 3 ignores undefined long requests.
-V: Print troff version.

ENVIRONMENT VARIABLES

LANG, LC_ALL: See locale(7).
LC_CTYPE: Determines the mapping of bytes to characters.
TYPESETTER: Specifies a device name as with the -T option.
TROFFONTS: A colon-separated list of directory names to search for PostScript fonts before the device font directory.
TROFFMACS: Specifies the location to search for macro files with the -m option. This string forms a prefix to which the macro package name is immediately appended. Thus to make `-mname' work with a file `/path/to/tmac.name', use `TROFFMACS=/path/to/tmac.'

FILES

/tmp/ta* temporary file
/usr/ucblib/doctools/tmac/* standard macro files
/usr/ucblib/doctools/font/* font width tables

EXAMPLES

To generate a PostScript file from input that contains equations and tables, use


<input tbl | eqn | troff | dpost >output.ps