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(inverted) tree. 3. By extension, the privileged system-maintenance login on any OS. See root mode, go root, see also wheel.
root mode n. Syn. with wizard mode or wheel mode. Like these, it is often generalized to describe privileged states in systems other than OSes.
rot13 /rot ther'teen/ n.,v. [Usenet: from 'rotate alphabet 13 places'] The simple Caesar-cypher encryption that replaces each English letter with the one 13 places forward or back along the alphabet, so that "The butler did it!" becomes "Gur ohgyre qvq vg!" Most Usenet news reading and posting programs include a rot13 feature. It is used to enclose the text in a sealed wrapper that the reader must choose to open e.g., for posting things that might offend some readers, or spoilers. A major advantage of rot13 over rot(N) for other N is that it is self-inverse, so the same code can be used for encoding and decoding.
rotary debugger n. [Commodore] Essential equipment for those late-night or early-morning debugging sessions. Mainly used as sustenance for the hacker. Comes in many decorator colors, such as Sausage, Pepperoni, and Garbage. See pizza, ANSI standard.
round tape n. Industry-standard 1/2-inch magnetic tape (7- or 9-track) on traditional circular reels. See macrotape, oppose square tape.
RSN /R-S-N/ adj. See Real Soon Now.
RTBM /R-T-B-M/ imp. [Unix] Commonwealth Hackish variant of RTFM; expands to 'Read The Bloody Manual'. RTBM is often the entire text of the first reply to a question from a newbie; the second would escalate to "RTFM".
RTFAQ /R-T-F-A-Q/ imp. [Usenet: primarily written, by analogy with RTFM] Abbrev. for 'Read the FAQ!', an exhortation that the person addressed ought to read the newsgroup's FAQ list before posting questions.
RTFB /R-T-F-B/ imp. [Unix] Acronym for 'Read The Fucking Binary'. Used when neither documentation nor source for the problem at hand exists, and the only thing to do is use some debugger or monitor and directly analyze the assembler or even the machine code. "No source for the buggy port driver? Aaargh! I hate proprietary operating systems. Time to RTFB."
Of the various RTF? forms, 'RTFB' is the least pejorative against anyone asking a question for which RTFB is the answer; the anger here is directed at the absence of both source and adequate documentation.

 
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