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nroff(1)		    General Commands Manual		      nroff(1)

NAME
       nroff - format text

SYNOPSIS
       [options] file ...

DESCRIPTION
       is  a  text formatting program that interprets source text contained in
       file and	prepares it for	printing on typewriter-like devices  and  line
       printers.   If file name	is or not specified, standard input is used as
       source text.

       If the file contains plain text with no formatter  requests,  uses  de-
       fault line lengths and page dimensions to produce readable output, out-
       putting a blank line for	each blank line	encountered in the input,  and
       filling	and  adjusting text to both margins.  ignores any lines	in the
       source text that	begin with a period but	are not	 valid	formatter  re-
       quests.

       formatting capabilities are described in	the tutorial cited below.

   Source File Preparation
       Document	 source	 file preparation is usually easier when text is coded
       using macro packages such as mm(1) which	provide	a high-level interface
       for headings, page footers, lists, and other features, rather than cod-
       ing the file with inherently low-level requests.

   Options
       recognizes the following	command-line options, which can	appear in  any
       order but must appear before the	file argument:

	      Print only pages whose page numbers appear in the
			     list  of numbers and ranges, separated by commas.
			     A range means pages n through m; an initial means
			     from  the	beginning to page n; and a final means
			     from n to the end.	 (See WARNINGS below.)

	      Number first generated page
			     n.

	      Stop every     n pages.  halts after every n pages (default n=1)
			     to	 allow	paper loading or changing, and resumes
			     upon receipt of a	line-feed  or  new-line	 (new-
			     lines do not work in pipelines, such as with When
			     halts between pages, an ASCII is sent to the ter-
			     minal.

	      Set register   a (which must have	a one-character	name) to N.

	      Read standard input after
			     files are exhausted.

	      Invoke the simultaneous input-output mode	of the
			     request.

	      Print only messages generated by
			     (terminal message)	requests.

	      Precede the input
			     files  with  the  non-compiled (ASCII text) macro
			     file

			     where LANG	is the value of	the environment	 vari-
			     able.  If is not set or

			     does  not	exist,	the following file is used in-
			     stead:

	      Prepare output for specified terminal.
			     Known names are as	follows:

				  for the (default)
					  TELETYPE Model 37 terminal
				  for the GE TermiNet  300  (or	 any  terminal
					  without half-line capability)
				  for the DASI 300s
				  for the DASI 300
				  for the DASI 450
				  for a	(generic)
					  ASCII	line printer
				  for the DTC-382
				  for the Trendata 4000A
				  for the Anderson Jacobson 832
				  for a	(generic)
					  EBCDIC printer
				  for the Hewlett-Packard 2631 line printer
				  for  a  (generic)  16-bit  character printer
				  having ratio of 2 to 3
					  in 8-bit and 16-bit character	width
				  for Hewlett-Packard
					  PCL3 and newer laser printers.

	      Produce equally-spaced words in adjusted lines,
			     using the full resolution of the particular  ter-
			     minal.

	      Use output tabs during horizontal	spacing
			     to	 speed	output	and  reduce  output  character
			     count.  Tab settings  are	assumed	 to  be	 every
			     eight nominal character widths.

	      Set the emboldening factor (number of character overstrikes)
			     for  the  third  font position (bold) to n, or to
			     zero if n is missing.

	      If this option is	specified on the command line, it  allows  the
	      use
			     of	 the  special  feature	provided by some Asian
			     printers which prints two column wide  characters
			     in	3/2 column wide	boxes.

EXTERNAL INFLUENCES
   Environment Variables
       determines the interpretation of	text as	single and/or multi-byte char-
       acters.

       is used to determine the	search path for	the option.   also  determines
       the language in which messages are displayed.

       If  is  not specified in	the environment	or is set to the empty string,
       the value of is used as a default for each unspecified or  empty	 vari-
       able.   If is not specified or is set to	the empty string, a default of
       "C" (see	lang(5)) is used instead of If any internationalization	 vari-
       able  contains  an invalid setting, behaves as if all internationaliza-
       tion variables are set to "C".  See environ(5).

EXAMPLES
       The following command prints the	first five pages of the	document whose
       source file is filename:

       Note  that  there  should not be	a space	between	the and	the or the and
       the

       To print	only pages 1, 3, and 4 type:

WARNINGS
       When is used with the option inside a pipeline, it may cause a harmless
       "broken pipe" diagnostic	if the last page of the	document is not	speci-
       fied in list.

FILES
       Standard	macro files
       Terminal	driving	tables for
       Suffix hyphenation tables
       Standard	macro files and	pointers

SEE ALSO
       col(1), mm(1), neqn(1), soelim(1), ul(1), man(5).

								      nroff(1)

NAME | SYNOPSIS | DESCRIPTION | EXTERNAL INFLUENCES | EXAMPLES | WARNINGS | FILES | SEE ALSO

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