nl - number lines of files


   nl [OPTION]... [FILE]...


   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

   -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

          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


   Written by Scott Bartram and David MacKenzie.


   GNU coreutils online help: <>
   Report nl translation bugs to <>


   Copyright    2016  Free Software Foundation, Inc.  License GPLv3+: GNU
   GPL version 3 or later <>.
   This is free software: you are free  to  change  and  redistribute  it.
   There is NO WARRANTY, to the extent permitted by law.


   Full documentation at: <>
   or available locally via: info '(coreutils) nl invocation'


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