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The Free On-line Dictionary of Computing (foldoc)

/dif/ 1. A change listing, especially giving differences
between (and additions to) different versions of a piece of
source code or documentation (the term is often used in the
plural "diffs"). "Send me your diffs for the Jargon File!"

Compare {vdiff}.

2. Specifically, such a listing produced by the diff {Unix}
command, especially when used as input to the {patch} utility
(which actually performs the modifications). This is a common
method of distributing patches and source updates.

3. To compare (whether or not by use of automated tools on
machine-readable files).

See also {vdiff}, {mod}.

[{Jargon File}]

(1995-02-10)