Data differencing: Difference between revisions

Revision as of 10:45, 11 September 2012

Revision as of 01:57, 4 November 2013

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== Examples ==

One of the best-known examples of data differencing is the [[diff]] utility, which produces line-by-line differences of [[text file]]s (and in some implementations, [[binary file]]s, thus being a general-purpose differencing tool). Differencing of general binary files goes under the rubric of [[delta encoding]], with a widely- used example being the algorithm used in [[rsync]]. A standardized generic differencing format is [[VCDIFF]], implemented in such utilities as [[Xdelta]] version 3. A high-efficiency (small patch files) differencing program is [http://www.daemonology.net/bsdiff/ bsdiff], which is based on [[bzip2]] compression, demonstrating the close connection between differencing and compression.

== Concerns ==