:root: [UNIX] n. 1. The {superuser} account that ignores permission bits, user number 0 on a UNIX system. This account has the user name `root'. The term {avatar} is also used. 2. The top node of the system directory structure (home directory of the root user). 3. By extension, the privileged system-maintenance login on any OS. See {root mode}, {go root}.
: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/ [USENET: from `rotate alphabet 13 places'] n., v. 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 answers to puzzles. 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: [Commodore] n. 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" magnetic tape (7- or 9-track) on traditional circular reels; oppose {square tape}.
:RSN: /R-S-N/ adj. See {Real Soon Now}.
:RTBM: /R-T-B-M/ [UNIX] imp. 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/ [USENET: primarily written, by analogy with
{RTFM}] imp. 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/ [UNIX] imp. Acronym for `Read The Fucking Binary'. Used when neither documentation nor the the 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."
:RTFM: /R-T-F-M/ [UNIX] imp. Acronym for `Read The Fucking Manual'. 1. Used by {guru}s to brush off questions they consider trivial or annoying. Compare {Don't do that, then!} 2. Used when reporting a problem to indicate that you aren't just asking out of {randomness}. "No, I can't figure out how to interface UNIX to my toaster, and yes, I have RTFM." Unlike sense 1, this use is considered polite. See also {FM}, {RTFAQ}, {RTFB}, {RTFS}, {RTM}, all of which mutated from RTFM, and compare {UTSL}.