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, --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, --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 | |
| 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: <http://www.gnu.org/software/coreutils/> General help using GNU software: <http://www.gnu.org/gethelp/>
COPYRIGHT
Copyright © 2009 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://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
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' | |
