User Commands NL(1)
NAME
nl - number lines of files
SYNOPSIS
nl [OPTION]... [FILE]...
DESCRIPTION
Write each FILE to standard output, with line numbers added.
With no FILE, or when FILE is -, read standard input.
Mandatory arguments to long options are mandatory for short
options too.
-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, --line-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, --starting-line-number=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
GNU coreutils 8.5 Last change: April 2010 1
User Commands NL(1)
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
pBRE number only lines that contain a match for the basic
regular expression, BRE
FORMAT is one of:
ln left justified, no leading zeros
rn right justified, no leading zeros
rz right justified, leading zeros
AUTHOR
Written by Scott Bartram and David MacKenzie.
REPORTING BUGS
Report nl bugs to bug-coreutils@gnu.org
GNU coreutils home page:
General help using GNU software:
Report nl translation bugs to
COPYRIGHT
Copyright c 2010 Free Software Foundation, Inc. License
GPLv3+: GNU GPL version 3 or later
.
This is free software: you are free to change and redistri-
bute it. There is NO WARRANTY, to the extent permitted by
law.
SEE ALSO
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 coreutils nl invocation
should give you access to the complete manual.
GNU coreutils 8.5 Last change: April 2010 2