ndselect - select lines and fields for numdiff

       Copyright  ©  2005,  2006,  2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017  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.

       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

       ndselect - select lines and fields for numdiff

       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

              infonumdiff

       should give you access to the complete manual.

ndselect 5.9.0                                    January 2017                                       NDSELECT(1)