NL(1)                                     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

       By default, selects -v1 -i1 -l1 -sTAB -w6 -nrn -hn -bt -fn.  CC are two delimiter  charac-
       ters  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

       GNU coreutils online help: <http://www.gnu.org/software/coreutils/> Report nl  translation
       bugs to <http://translationproject.org/team/>

AUTHOR
       Written by Scott Bartram and David MacKenzie.

COPYRIGHT
       Copyright  }  2013  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 pro-
       grams are properly installed at your site, the command

              info coreutils 'nl invocation'

       should give you access to the complete manual.



GNU coreutils 8.22                         October 2018                                     NL(1)