nl(1)									 nl(1)

NAME    [Toc]    [Back]

     nl	- line numbering filter

SYNOPSIS    [Toc]    [Back]

     nl	[-btype] [-ftype] [-htype] [-vstart#] [-iincr] [-p] [-lnum] [-ssep]
     [-wwidth] [-nformat] [-ddelim] [file]

DESCRIPTION    [Toc]    [Back]

     nl	reads lines from the named file, or the	standard input if no file is
     named, and	reproduces the lines on	the standard output.  Lines are
     numbered on the left in accordance	with the command options in effect.
     nl	processes supplementary	code set characters according to the locale
     specified in the LC_CTYPE environment variable [see LANG on environ(5)],
     except as noted below.  In	regular	expressions, pattern searches are
     performed on characters, not bytes, as described on ed(1).

     nl	views the text it reads	in terms of logical pages.  Line numbering is
     reset at the start	of each	logical	page.  A logical page consists of a
     header, a body, and a footer section.  Empty sections are valid.
     Different line numbering options are independently	available for header,
     body, and footer.	For example, -bt (the default) numbers non-blank lines
     in	the body section and does not number any lines in the header and
     footer sections.

     The start of logical page sections	are signaled by	input lines containing
     nothing but the following delimiter character(s):

	  Line contents	 Start of

	  \:\:\:	 header

	  \:\:		 body

	  \:		 footer

     Unless optioned otherwise,	nl assumes the text being read is in a single
     logical page body.

     Command options may appear	in any order and may be	intermingled with an
     optional file name.  Only one file	may be named.  The options are:

     -btype    Specifies which logical page body lines are to be numbered.
	       Recognized types	and their meanings are:

	a    number all	lines
	t    number lines with printable text only
	n    no	line numbering
	pexp number only lines that contain the	regular	expression
	     specified in exp [see ed(1)]
     Default type for logical page body	is t (text lines numbered).  All
     supplementary code	set characters are considered printable.




									Page 1






nl(1)									 nl(1)



     -ftype    Same as -btype except for footer.  Default type for logical
	       page footer is n	(no lines numbered).  All supplementary	code
	       set characters are considered printable.

     -htype    Same as -btype except for header.  Default type for logical
	       page header is n	(no lines numbered).  All supplementary	code
	       set characters are considered printable.

     -vstart#  start# is the initial value used	to number logical page lines.
	       Default start# is 1.

     -iincr    incr is the increment value used	to number logical page lines.
	       Default incr is 1.

     -p	       Do not restart numbering	at logical page	delimiters.

     -lnum     num is the number of blank lines	to be considered as one.  For
	       example,	-l2 results in only the	second adjacent	blank being
	       numbered	(if the	appropriate -ha, -ba, and/or -fa option	is
	       set).  Default num is 1.

     -ssep     sep is the character(s) used in separating the line number and
	       the corresponding text line.  Default sep is a tab.  sep	must
	       be a single-byte	character or characters.

     -wwidth   width is	the number of characters to be used for	the line
	       number.	Default	width is 6. The	maximum	for width is 100.  If
	       a number	greater	than the maximum is specified for width, the
	       maximum is automatically	be used.

     -nformat  format is the line numbering format.  Recognized	values are:
	       ln, left	justified, leading zeroes suppressed; rn, right
	       justified, leading zeroes suppressed; rz, right justified,
	       leading zeroes kept.  Default format is rn (right justified).

     -ddelim   The two delimiter characters specifying the start of a logical
	       page section may	be changed from	the default characters (\:) to
	       two user-specified characters.  If only one character is
	       entered,	the second character remains the default character
	       (:).  No	space should appear between the	-d and the delimiter
	       characters.  To enter a backslash, use two backslashes.	delim
	       must be a single-byte character or characters.

EXAMPLE    [Toc]    [Back]

     The command:

	       nl -v10 -i10 -d!+ file1

     will cause	the first line of the page body	to be numbered 10, the second
     line of the page body to be numbered 20, the third	30, and	so forth.  The
     logical page delimiters are !+.




									Page 2






nl(1)									 nl(1)

FILES    [Toc]    [Back]

     /usr/lib/locale/locale<b>/LC_MESSAGES/uxdfm
	  language-specific message file [See LANG on environ(5).]

SEE ALSO    [Toc]    [Back]

     pr(1), ed(1)


									PPPPaaaaggggeeee 3333