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NDSELECT(1)                      User Commands                     NDSELECT(1)

NAME
       ndselect - select lines and fields for numdiff

DESCRIPTION
       Usage: ndselect -h|--help|-v|--version   or

       ndselect [-b N][-e N][-s N][-F N][-L N][-I N][-S IFS][-D DELIMS][-O
       OSEP][-x][-l PATH][-o PATH] [FILE]

       Print to standard output a subset of lines and fields from a given
       file.

       The argument after the options is the name of the file to read from.
       The complete path of the file should be given, a directory name is not
       accepted.  If no input file is specified, the program reads from the
       standard input.

       Exit status: 0 in case of normal termination, -1 (255) in case of error

       -b, --beginning, --start=N

              Set to N the number of the first line to print (The default
              behavior is to start with line number 1)

       -e, --end=N

              Set to N the number of the last line that can be printed (The
              default behavior is to arrive till to the end of the file)

       -s, --step=N

              Set to N the increment to use when selecting the lines to print
              (The default value for the increment is 1)

       -F, --first-field=N

              Set to N the number of the first field to print (The default
              behavior is to start with field number 1)

       -L, --last-field=N

              Set to N the number of the last field that can be printed (The
              default behavior is to arrive till to the end of every line)

       -I, --increment=N

              Set to N the increment to use when selecting the fields to print
              (The default value for the increment is 1)

       -S, --separators=IFS

              Specify the set of characters to use as delimiters while
              splitting the input lines into fields (The default set of
              delimiters is space, tab and newline)

       -D, --delimiters=DELIMS

              Specify the set of strings to use as delimiters while splitting
              the input lines into fields (The default set of delimiters is
              space, tab and newline)

       -O, --output-separator=OSEP

              Specify the string to use as separator while writing the
              selected fields to the standard output (The default behavior
              consists in reusing the delimiters found in the input lines)

       -x, --omit-empty-lines

              Do not print empty lines

       -l, --warnings-to=PATH

              Redirect warning and error messages from stderr to the indicated
              file

       -o, --output=PATH

              Redirect output from stdout to the indicated file

       -h, --help

              Show this help message

       -v, --version

              Show version number, Copyright, Distribution Terms and
              NO-Warranty

COPYRIGHT
       Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013
       Ivano Primi <ivprimi@libero.it>
       License GPLv3+: GNU GPL version 3 or later, see
       <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 ndselect is maintained as a Texinfo manual.
       If the info and ndselect programs are properly installed at your site,
       the command

              info numdiff

       should give you access to the complete manual.

ndselect 5.8.1                     July 2013                       NDSELECT(1)