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OpenSolaris 2009.06 - man page for nl (opensolaris section 1)

nl(1)					  User Commands 				    nl(1)

NAME
       nl - line numbering filter

SYNOPSIS
       /usr/bin/nl [-p] [-b [type]] [-d [delim]] [-f [type]]
	    [-h [type]] [-i [incr]] [-l [num]] [-n [format]]
	    [-s [sep]] [-w [width]] [-v [startnum]] [file]

       /usr/xpg4/bin/nl [-p] [-b type] [-d delim] [-f type]
	    [-h type] [-i incr] [-l num] [-n format] [-s sep]
	    [-w width] [-v startnum] [file]

DESCRIPTION
       The nl utility 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  accor-
       dance with the command options in effect.

       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.

OPTIONS
       Command	options  may  appear  in  any order and may be intermingled with an optional file
       name. Only one file may be named. The specified default is used when  the  option  is  not
       entered	on  the command line. /usr/xpg4/bin/nl options require option arguments.  A SPACE
       character may separate options from option arguments. /usr/bin/nl options  may have option
       arguments.  If  option-arguments  of  /usr/bin/nl options are not specified, these options
       result in the default. The supported 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 all non-empty lines.

		     n	     no line numbering

		     pexp    number  only  lines that contain the regular expression specified in
			     exp. See NOTES below.

		     Default type for logical page body is t (text lines numbered).

       -ftype	     Same as -btype except for footer. Default type for logical page footer is	n
		     (no lines numbered).

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

       -htype	     Same  as -btype except for header. Default type for logical page header is n
		     (no lines numbered).

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

       -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.

       -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).

       -p	     Do not restart numbering at logical page delimiters.

       -ssep	     sep  is  the  character(s) used in separating the line number and the corre-
		     sponding text line. Default sep is a TAB.

       -vstartnum    startnum is the initial value used to number  logical  page  lines.  Default
		     startnum is 1.

       -wwidth	     width  is	the  number of characters to be used for the line number. Default
		     width is 6.

OPERANDS
       The following operand is supported:

       file    A path name of a text file to be line-numbered.

EXAMPLES
       Example 1 An example of the nl command

       The command:

	 example% nl -v10 -i10 -d!+ filename1

       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 !+.

ENVIRONMENT VARIABLES
       See  environ(5)	for  descriptions  of the following environment variables that affect the
       execution of nl: LANG, LC_ALL, LC_COLLATE, LC_CTYPE, LC_MESSAGES, and NLSPATH.

EXIT STATUS
       The following exit values are returned:

       0     Successful completion.

       >0    An error occurred.

FILES
       /usr/lib/locale/locale/LC_COLLATE/CollTable

	   Collation table generated by localedef

       /usr/lib/locale/locale/LC_COLLATE/coll.so

	   Shared object containing string transformation library routines

ATTRIBUTES
       See attributes(5) for descriptions of the following attributes:

   /usr/bin/nl
       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWesu			   |
       +-----------------------------+-----------------------------+

   /usr/xpg4/bin/nl
       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWxcu4			   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Standard			   |
       +-----------------------------+-----------------------------+

SEE ALSO
       pr(1), attributes(5), environ(5), regex(5), regexp(5), standards(5)

NOTES
       Internationalized Regular Expressions are used in the POSIX  and  "C"  locales.	In  other
       locales,  Internationalized  Regular  Expressions are used if the following two conditions
       are met:

	   o	  /usr/lib/locale/locale/LC_COLLATE/CollTable is present.

	   o	  /usr/lib/locale/locale/LC_COLLATE/coll.so is not present.

       Otherwise, Simple Regular Expressions are used.

       Internationalized Regular Expressions are explained on regex(5).  Simple  Regular  Expres-
       sions are explained on  regexp(5).

SunOS 5.11				   28 Mar 1995					    nl(1)


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