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diff: /dif/, n. 1. A change listing, especially giving differences between (and
additions to) source code or documents (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(1)
command, esp. when used as specification input to the
patch(1)
utility (which can actually perform the modifications; see
patch). This is a common method of distributing
patches and source updates in the Unix/C world. 3. v. To compare (whether or not
by use of automated tools on machine-readable files); see also
vdiff, mod.
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