nl - number lines of files
nl [OPTION]... [FILE]...
Write each FILE to standard output, with line numbers added. With no
FILE, or when FILE is -, read standard input.
-b, --body-numbering=STYLE
use STYLE for numbering body lines
-d, --section-delimiter=CC
use CC for separating logical pages
-f, --footer-numbering=STYLE
use STYLE for numbering footer lines
-h, --header-numbering=STYLE
use STYLE for numbering header lines
-i, --page-increment=NUMBER
line number increment at each line
-l, --join-blank-lines=NUMBER
group of NUMBER empty lines counted as one
-n, --number-format=FORMAT
insert line numbers according to FORMAT
-p, --no-renumber
do not reset line numbers at logical pages
-s, --number-separator=STRING
add STRING after (possible) line number
-v, --first-page=NUMBER
first line number on each logical page
-w, --number-width=NUMBER
use NUMBER columns for line numbers
--help display this help and exit
--version
output version information and exit
By default, selects -v1 -i1 -l1 -sTAB -w6 -nrn -hn -bt -fn. CC are two
delimiter characters for separating logical pages, a missing second
character implies :. Type \\ for \. STYLE is one of:
a number all lines
t number only nonempty lines
n number no lines
pREGEXP
number only lines that contain a match for REGEXP
FORMAT is one of:
ln left justified, no leading zeros
rn right justified, no leading zeros
rz right justified, leading zeros
Written by Scott Bartram and David MacKenzie.
Report bugs to <bug-textutils@gnu.org>.
Copyright (C) 1999 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is
NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE.
The full documentation for nl is maintained as a Texinfo manual. If
the info and nl programs are properly installed at your site, the command
info nl
should give you access to the complete manual.
GNU textutils 2.0 July 2001 NL(1)
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