wdiff --version (return code: 0)
wdiff (GNU wdiff) 1.2.2
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 PARTICULAR PURPOSE.
Written by Franc,ois Pinard <pinard@iro.umontreal.ca>.
wdiff --help (return code: 0)
wdiff - Compares words in two files and report differences.
Usage: wdiff [OPTION]... FILE1 FILE2
or: wdiff -d [OPTION]... [FILE]
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
Report bugs to <wdiff-bugs@gnu.org>.