Explain diff
diff Technical Terms
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. See also {vdiff}, {mod}.