File comparison
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File comparison in computing is the automatic comparing of data between files on a file system. The result of comparisons are typically displayed to the user, but can also be used to accomplish tasks in networks, file systems and revision control.
Examples of programs that complete the task include diff and cmp. The ability to highlight the changes to a document or file are found in text editors and word processors.
Examples of file comparison utilities include FileMerge and Microsoft File Compare. Diffutils is a GNU package which includes the diff command among other utilities. Free software comparison tools that provide file comparison systems, include WinMerge and Meld.
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