(wdiff.info)Overview

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1 Overview
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`wdiff' is a front end to `diff' for comparing files on a word per word
basis. It works by creating two temporary files, one word per line, and
then executes `diff' on these files. It collects the `diff' output and
uses it to produce a nicer display of word differences between the
original files.

   `mdiff' studies one or more input files altogether, and discovers
blocks of items which repeat at more than one place.  Items may be
lines, words, or units defined by user.  When in word mode, `mdiff'
compares two files, finding which words have been deleted or added to
the first in order to create the second, which is useful when two texts
differ only by a few words and paragraphs have been refilled.  The
program has many output formats and interacts well with terminals and
pagers (notably with `less').

   `unify' is able to convert context diffs to unidiff format, or the
other way around.  Some people just prefer one format and despise the
other, it is a religious issue.  This program brings peace back to
Earth.

   `wdiff2' is intended as a replacement to `wdiff'.  It aims at
supporting the same set of options, but uses `mdiff' instead of `diff'
as its backend.

   `wdiff', `mdiff' and `wdiff2' were written by François Pinard, while
`unify' has been contributed by Wayne Davison.  Please report bugs to
<wdiff-bugs@gnu.org>.  Include the version number, which you can find
by running the program with `--version'.  Please include in your
message sufficient input to reproduce what you got, the output you
indeed expected, and careful explanations about the nature of the
problem.