Man1 - nl.1
Table of Contents
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 logical page delimiters
- -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 for each section
- -s, *–number-separator*=/STRING/
- add STRING after (possible) line number
- -v, *–starting-line-number*=/NUMBER/
- first line number for each section
- -w, *–number-width*=/NUMBER/
- use NUMBER columns for line numbers
- –help
- display this help and exit
- –version
- output version information and exit
Default options are: -bt -d’\:’ -fn -hn -i1 -l1 -n’rn’ -s*<TAB> *-v1 -w6
CC are two delimiter characters used to construct logical page delimiters; a missing second character implies ’:’. As a GNU extension one can specify more than two characters, and also specifying the empty string (-d ’’) disables section matching.
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
GNU coreutils online help: https://www.gnu.org/software/coreutils/
Report any translation bugs to https://translationproject.org/team/
COPYRIGHT
Copyright © 2021 Free Software Foundation, Inc. License GPLv3+: GNU GPL
version 3 or later https://gnu.org/licenses/gpl.html.
This is free software: you are free to change and redistribute it. There
is NO WARRANTY, to the extent permitted by law.
SEE ALSO
Full documentation https://www.gnu.org/software/coreutils/nl
or available locally via: info ’(coreutils) nl invocation’