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Full Discussion: Vi editor question
Top Forums UNIX for Beginners Questions & Answers Vi editor question Post 303036253 by Don Cragun on Thursday 20th of June 2019 09:15:28 PM
Old 06-20-2019
Without a better explanation of what you're trying to do, it is hard to give a good answer.

If you want to delete all but the last 3 words on every line, or delete the first 2 words on every line, we can make suggestions that will help. If you want to delete everything but a few recognized words (and can't or won't tell us which words are "recognized"), it becomes much harder for us to make any useful suggestions.

If you can show us a representative sample input file and explain how you want to modify that text and show us the output you hope to produce, we can do a much better job of making useful suggestions.
This User Gave Thanks to Don Cragun For This Post:
jim mcnamara
 

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LEARN ABOUT NETBSD

wdiff

WDIFF(1)							   User Commands							  WDIFF(1)

NAME

       wdiff - display word differences between text files

SYNOPSIS

       wdiff [OPTION]... FILE1 FILE2
       wdiff -d [OPTION]... [FILE]

DESCRIPTION

       wdiff - Compares words in two files and report differences.

       Mandatory arguments to long options are mandatory for short options too.

       -C, --copyright
	      display copyright then exit

       -1, --no-deleted
	      inhibit output of deleted words

       -2, --no-inserted
	      inhibit output of inserted words

       -3, --no-common
	      inhibit output of common words

       -a, --auto-pager
	      automatically calls a pager

       -d, --diff-input
	      use single unified diff as input

       -h, --help
	      display this help then exit

       -i, --ignore-case
	      fold character case while comparing

       -l, --less-mode
	      variation of printer mode for "less"

       -n, --avoid-wraps
	      do not extend fields through newlines

       -p, --printer
	      overstrike as for printers

       -s, --statistics
	      say how many words deleted, inserted etc.

       -t, --terminal
	      use termcap as for terminal displays

       -v, --version
	      display program version then exit

       -w, --start-delete=STRING
	      string to mark beginning of delete region

       -x, --end-delete=STRING
	      string to mark end of delete region

       -y, --start-insert=STRING
	      string to mark beginning of insert region

       -z, --end-insert=STRING
	      string to mark end of insert region

COMPATIBILITY

       Some  options that used to provide some unique functionality are no longer recommended, but still recognized for the sake of backwards com-
       patibility.

       -K, --no-init-term
	      Now synonymous to --terminal, which never initializes the terminal.

AUTHOR

       Written by Franc,ois Pinard <pinard@iro.umontreal.ca>.

REPORTING BUGS

       Report bugs to <wdiff-bugs@gnu.org>.

COPYRIGHT

       Copyright (C) 1992, 1997, 1998, 1999, 2009, 2010, 2011, 2012 Free Software Foundation, Inc.
       This is free software; see the source for copying conditions.  There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICU-
       LAR PURPOSE.

SEE ALSO

       The  full  documentation  for wdiff is maintained as a Texinfo manual.  If the info and wdiff programs are properly installed at your site,
       the command

	      info wdiff

       should give you access to the complete manual.

wdiff 1.1.2							     May 2012								  WDIFF(1)
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