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
© 2023 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'