1NL(1)                            User Commands                           NL(1)
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NAME

6       nl - number lines of files
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SYNOPSIS

9       nl [OPTION]... [FILE]...
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DESCRIPTION

12       Write  each  FILE to standard output, with line numbers added.  With no
13       FILE, or when FILE is -, read standard input.
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15       Mandatory arguments to long options are  mandatory  for  short  options
16       too.
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18       -b, --body-numbering=STYLE
19              use STYLE for numbering body lines
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21       -d, --section-delimiter=CC
22              use CC for separating logical pages
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24       -f, --footer-numbering=STYLE
25              use STYLE for numbering footer lines
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27       -h, --header-numbering=STYLE
28              use STYLE for numbering header lines
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30       -i, --page-increment=NUMBER
31              line number increment at each line
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33       -l, --join-blank-lines=NUMBER
34              group of NUMBER empty lines counted as one
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36       -n, --number-format=FORMAT
37              insert line numbers according to FORMAT
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39       -p, --no-renumber
40              do not reset line numbers at logical pages
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42       -s, --number-separator=STRING
43              add STRING after (possible) line number
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45       -v, --first-page=NUMBER
46              first line number on each logical page
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48       -w, --number-width=NUMBER
49              use NUMBER columns for line numbers
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51       --help display this help and exit
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53       --version
54              output version information and exit
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56       By default, selects -v1 -i1 -l1 -sTAB -w6 -nrn -hn -bt -fn.  CC are two
57       delimiter characters for separating logical  pages,  a  missing  second
58       character implies :.  Type \\ for \.  STYLE is one of:
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60       a      number all lines
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62       t      number only nonempty lines
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64       n      number no lines
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66       pBRE   number  only  lines  that  contain a match for the basic regular
67              expression, BRE
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69       FORMAT is one of:
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71       ln     left justified, no leading zeros
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73       rn     right justified, no leading zeros
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75       rz     right justified, leading zeros
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AUTHOR

78       Written by Scott Bartram and David MacKenzie.
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REPORTING BUGS

81       Report bugs to <bug-coreutils@gnu.org>.
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84       Copyright © 2007 Free Software Foundation, Inc.
85       This is free software.  You may redistribute copies  of  it  under  the
86       terms       of       the      GNU      General      Public      License
87       <http://www.gnu.org/licenses/gpl.html>.  There is NO WARRANTY,  to  the
88       extent permitted by law.
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SEE ALSO

91       The  full  documentation  for nl is maintained as a Texinfo manual.  If
92       the info and nl programs are properly installed at your site, the  com‐
93       mand
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95              info nl
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97       should give you access to the complete manual.
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101GNU coreutils 6.9                 March 2008                             NL(1)
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