1. (run commands) The filename extension common to many Unix configuration files, e.g. .newsrc, .cshrc, .twmrc, elmrc, etc.

The suffix "rc" derives from a script-creation utility in CTSS called "runcom" (for "run commands").

Unix FAQ.

2. A shell from AT&T's Plan 9, by Tom Duff. rc offers much the same capabilities as a traditional Bourne shell, but with a much cleaner syntax.

An open source reimplementation was made by Byron Rakitzis, and is now maintained by Tim Goodwin <[email protected]>.

Latest version: 1.6, as of 2000-06-15.

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