R

r-base

GNU R statistical computing language and environment R is `GNU S' - A language and environment for statistical computing and graphics. R is similar to the award-winning S system, which was developed at Bell Laboratories by John Chambers et al. It provides a wide variety of statistical and graphical techniques (linear and nonlinear modelling, statistical tests, time series analysis, classification, clustering, ...). R is designed as a true computer language with control-flow constructions for iteration and alternation, and it allows users to add additional functionality by defining new functions. For computationally intensive tasks, C, C++ and Fortran code can be linked and called at run time. S is the statistician's Matlab and R is to S what Octave is to Matlab. This packages is a meta-package which eases the transition from the pre-1.5.0 package setup with its larger r-base package. Once installed, it can be safely removed and apt-get will automatically upgrade its components during future upgrades. Providing this packages gives a way to users to then only install r-base-core (but not, say, r-base-latex) if they so desire. From Debian 3.0r0 APT http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

r-gnome

GNU R Gnome gui for statistical computing system R is `GNU S' - A language and environment for statistical computing and graphics. R is similar to the award-winning S system, which was developed at Bell Laboratories by John Chambers et al. It provides a wide variety of statistical and graphical techniques (linear and nonlinear modelling, statistical tests, time series analysis, classification, clustering, ...). R is designed as a true computer language with control-flow constructions for iteration and alternation, and it allows users to add additional functionality by defining new functions. For computationally intensive tasks, C, C++ and Fortran code can be linked and called at run time. This package provides the dynamic link libraries needed to start GNU R with the GNOME libraries frontend as in "R --gui=GNOME" From Debian 3.0r0 APT http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

r-mathlib

GNU R standalone mathematics library R is `GNU S' - A language and environment for statistical computing and graphics. R is similar to the award-winning S system, which was developed at Bell Laboratories by John Chambers et al. It provides a wide variety of statistical and graphical techniques (linear and nonlinear modelling, statistical tests, time series analysis, classification, clustering, ...). R is designed as a true computer language with control-flow constructions for iteration and alternation, and it allows users to add additional functionality by defining new functions. For computationally intensive tasks, C, C++ and Fortran code can be linked and called at run time. This packages provides the libRmath shared and static libraries which can be called from standalone C or C++ code. From Debian 3.0r0 APT http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

r-recommended

GNU R collection of recommended packages R is `GNU S' - A language and environment for statistical computing and graphics. R is similar to the award-winning S system, which was developed at Bell Laboratories by John Chambers et al. It provides a wide variety of statistical and graphical techniques (linear and nonlinear modelling, statistical tests, time series analysis, classification, clustering, ...). This Debian package contains the R packages that are recommended by the upstream R core team as part of a complete R distribution. It comprises the following packages: - KernSmooth: Functions for kernel smoothing for Wand & Jones (1995) - VR: The MASS, class, nnet and spatial libraries from Venables and Ripley, `Modern Applied Statistics with S-PLUS' (3rd edition). - boot: Bootstrap R (S-Plus) Functions from the book "Bootstrap Methods and Their Applications" by A.C. Davison and D.V. Hinkley (1997). - cluster: Functions for clustering (by Rousseeuw et al.) - foreign: Read data stored by Minitab, S, SAS, SPSS, Stata, ... - grid: The grid graphics package (required by lattice) - lattice: Implementation of Trellis (R) graphics - mgcv: Multiple smoothing parameter estimation and GAMs by GCV - nlme: Linear and nonlinear mixed effects models - rpart: Recursive partitioning and regression trees - survival: Survival analysis, including penalised likelihood. From Debian 3.0r0 APT http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RA

Registration Authority (PKI, ITU) From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RA

Remote Access (BBS) From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

Rabid Squirrel Linux

Development on this distribution appears to have ceased early in 2000. Distribution development is not all that active. From LWN Distribution List http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

racc

A generator of LALR parser written by Ruby Racc is LALR(1) parser generator coded for Ruby. Written by Ruby and output Ruby source. From Debian 3.0r0 APT http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

racc-runtime

Runtime library for parser which is generated by Racc. Runtime library for parser which is generated by Racc. From Debian 3.0r0 APT http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

raccess

Security Tool to audit remote systems Remote Access Session is a security tool to analyze the integrity of systems. The program tries to gain access to a system using the most advanced techniques of remote intrusion. It lets to work on normal mode (fast) and hard mode (more intensive). There is a big difference between "Remote Access Session" and other remote security audit tools: If "Remote Access Session" find a remote vulnerability that gives user account or root, it will try to exploit it and it will return a shell in order to discard false positives. It is actually under development and it just has a few features of the future final version: *Advanced scanning capabilities. This tool doesn't block against firewall and it's fast. *Total service's banner info added: Includes web server detection version and named version, and the classical too (ftp, pop ...) *Writes reports with info of the host analyzed to the hard disk. *Remote OS detect feature with QueSO. *If detects any vulnerability, the tool chooses the right exploits based on version, vendor and OS of the services that run on the remote host and ask you on a interactive way if you want to run these exploits in order to check the real danger the remote host can receive and discard false positives. Includes 69 remote exploits for various OS and services. From Debian 3.0r0 APT http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

raccess4vbox3

DTMF support and utilities for vbox3 raccess4vbox3 provides initial configuration of vbox3, support for DTMF, and comes as a sample answering machine with remote access mode plus example modes for remote control of the system. A set of american voice sound files created with festival is included. From Debian 3.0r0 APT http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

race

A 3D arcade overhead car game. Race is a 3D racing game where you compete against computer opponents. The objective is to finish first. The setting is mostly off-road. This package contains the executable. From Debian 3.0r0 APT http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RACE

Research and technology development in Advanced Communications technologies in Europe (Europe, predecessor, CORDIS) From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RACE

Rowbased ASCII Compatible Encoding (ASCII, Internet, DOMAIN, VeriSign/NSI) From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RACF

Resource Access Control Facility (IBM, MVS/ESA) From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RACH

Random Access CHannel (GSM, CCCH, mobile-systems) From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RAD

Rapid Access Disk From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RAD

Rapid Application Development [toolkit] (Delphi, Borland) From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RAD

Research And Development [data communications] (manufacturer) From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

radio

ncurses-bases radio application This is a ncurses-based radio application. It supports the video4linux API. From Debian 3.0r0 APT http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

radioclk

simple ntp refclock daemon for MSF/WWVB/DCF77 time signals radioclkd takes the demodulated time signals from simple MSF/WWVB/DCF77 time signal receivers on the DCD line of a serial port, decodes the signals, and provides an interface to ntp via the shared memory refclock driver. From Debian 3.0r0 APT http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RADIUS

Remote Authentication Dial-In User Service (RFC 2138) From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RADIUS

Remote Authentication Dial-In user Service. A standard for authentication and accounting, RADIUS is primarily used to control dial-up access to PPP and other services. The protocal was standardized in RFC 2058, the current implementation is defined in RFCs 2138 and 2139. RADIUS uses UDP packets, older servers use ports 1645 and 1646, the current standard is port 1812 for authentication and 1813 for accounting. From Linux Guide @FirstLinux http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RADIUS (Remote Authentication Dial In User Service)

RADIUS allows distributed "modem pools" to use the same authentication server. When a user dials-up to an ISPs, the username/password is transmitted across the Internet to the central RADIUS server. This allows an ISP to easily manage many dialin locations. Key point: Since its humble beginnings, RADIUS has spread to become a generic remote authentication service. For example, it is becoming the desired standard to fix IEEE 802.11 wireless authentication problems. random http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

radiusclient1

/bin/login replacement which uses the RADIUS protocol for authentication. Radiusclient is a /bin/login replacement which gets called by a getty to log in a user and to setup the user's login environment. Normal login programs just check the login name and password which the user entered against the local password file (/etc/passwd, /etc/shadow). In contrast to that Radiusclient also uses the RADIUS protocol to authenticate the user. This is the main binary archive. From Debian 3.0r0 APT http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

radiuscontext

Radius log parser and report generator. Parses radius detail logfiles and generates pretty reports in plaintext, html, or csv. From Debian 3.0r0 APT http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

radiusd-cistron

Radius server written by Cistron. RADIUS is a means of managing clients' access to network services, and is described by RFCs 2865 to 2869. This GPLed Radius server is not based on any Livingston code. It is compatible with the Livingston-2.01 server though. Over radius-2.01, it has support for Exec-Program on authentication, it is possible to limit the number of concurrent logins reliably, it has tagged attribute support, it can replicate accounting packets, and more. From Debian 3.0r0 APT http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

radiusd-livingston

Remote Authentication Dial-In User Service (RADIUS) server Provides the RADIUS server from Lucent Technologies Inc, formerly Livingston Enterprises Inc. RADIUS is a means of managing clients' access to network services, and is described by RFCs 2865 to 2869. From Debian 3.0r0 APT http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RADSL

Rate Adaptive Digital Subscriber Line (ADSL) From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

radvd

Router Advertisement Daemon IPv6 has a lot more support for autoconfiguration than IPv4. But for this autoconfiguration to work on the hosts of a network, the routers of the local network have to run a program which answers the autoconfiguration requests of the hosts. On Linux this program is called radvd, which stands for Router ADVertisement Daemon. This daemon listens to router solicitations (RS) and answers with router advertisement (RA). Furthermore unsolicited RAs are also sent from time to time. From Debian 3.0r0 APT http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RAID

A group of hard disks under the control of array management software that work together to improve performance and decrease the odds of losing data due to mechanical or electronic failure by using such techniques as data striping. RAID implementations, because of their complexity and steep cost, are most often used on network servers. Several RAID levels exist, each with advantages and disadvantages. See RAID level 0 through RAID level 53. From QUECID http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RAID

Redundant Array of Independent / Inexpensive Disks (HDD, RAID) From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RAID

Redundant Array of Inexpensive Disks - a method whereby information is spread across several disks, using techniques such as disk striping (RAID Level 0) and disk mirroring (RAID level 1) to achieve redundancy, lower latency and/or higher bandwidth for reading and/or writing, and recoverability from hard-disk crashes. From Linux Guide @FirstLinux http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RAID

see redundant arrays of independent disks (RAID). From Redhat-9-Glossary http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RAID (Redundant Array of Independent/Inexpensive Disks/Devices)

A method of providing data redundancy, improved performance and/or quick data recoverability from disk crashes, by spreading or duplicating data across multiple disk drives. Commonly used RAID types include RAID 0 (Data Striping), RAID 1 (Disk Mirroring) and RAID 5 (Striping with Distributed Parity). RAID configurations typically require SCSI disk drives (not IDE/EIDE) and may require identical drives (same capacity, brand, etc.). RAID arrays appear to the operating system as a single device. From I-gloss http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RAID level 0

A redundant array of inexpensive disks (RAID) scheme that includes data strinping to improve disk performance but offers no protection against data loss due to drive failure. From QUECID http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RAID level 0 & 1

See RAID level 10. From QUECID http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RAID level 1

A redundant array of inexpemive disks (RAID) scheme involving an array of two hard disks with identical contents. RAID level 1 does not employ data striping, so it offers no speed advantage and is not economical. From QUECID http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RAID level 10

A redundant array of inexpensive disks (RAID) implementation that combines the data striping of RAID level 0 with the data-redundancy of RAID level 1. RAID level 10 array have high performance, but are not economical. From QUECID http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RAID level 2

A redundant array of inexprnsive disks (RAID) scheme that uses data striping over an array of as many as a bard disks. Several of the drives in the array have copies of data that exist elsewhere, enabling them to catch and fix errors in the outgoing data stream. RAID level 2 is one of the most popular implementations. From QUECID http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RAID level 3

A redundant array of inexpemive disks (RAID) implementation very similar to RAID levels 2, in which the level disks that contain the copies of data that appears elsewhere can detect but not fix errors in the outgoing data stream. Though RAID level 3 is slightly slower than RAID level 2 when errors occur, modern hard disks rarely make errors. From QUECID http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RAID level 4

A redundant array of inexprnsive disks (RAID) implementation that distributes copies of sectors across an array of hard disked and uses one drive to check for, but not correct, errors in the outgoing data stream. RAID level 4's sector-copying technique is a special type of data striping. From QUECID http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RAID level 5

The most commonly used redundant array of inexpensive disks (RAID) implementation. RAID level 5 uses a sector-based data striping scheme like RAID level 4, but does ant require a special data-checking disk since it distributes that function across the entire array as well. From QUECID http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RAID level 53

A redundant array of inexpensive disks (RAID) scheme that uses data striping on two separate RAID level 3 arrays RAID level 53 arrays are very fast and quite fault-tolerant. From QUECID http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RAID level 6

A redundant array of inexpensive disks (RAID) implementation that allows two hard disks to fail without loss of data and boasts very good data-reading performance, but also has poor data-writing performance. RAID level 6 is similar to RAID level 5, except that it distributes two copies of the error-checking data across the array. From QUECID http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

raidtools

The raidtools package includes the tools you need to set up and maintain a software RAID device (using two or more disk drives in combination for fault tolerance and improved performance) on a Linux system. It only works with Linux 2.2 kernels and later, or with a 2.0 kernel specifically patched with newer RAID support. From Redhat 8.0 RPM http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

raidtools

Utilities to support 'old-style' RAID disks The Multiple Device driver's main goal is to group several disks or partitions together, making them look like a single block device. This includes linear adding of disks, RAID-0, RAID-4 and -5. If you are creating new RAID arrays, the raidtools2 package and newer RAID drivers may be a better choice. This package may only installed on systems with a kernel version higher than 2.1.62. With kernels from the 2.4 series or newer, or with 2.2 kernels with the 'new-style' RAID-patches, you should use raidtools2 instead. From Debian 3.0r0 APT http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

raidtools2

Utilities to support 'new-style' RAID disks The Multiple Device driver's main goal is to group several disks or partitions together, making them look like a single block device. This includes linear adding of disks, RAID-0, -1, -4 and -5. 'New-style' RAID arrays have a lot features not present in the 'older' RAID arrays, including autodetection. Old arrays can be upgraded with this package, and it is mostly a good idea to use this package when creating new RAID arrays. In order to use this package, you must have a kernel with 'new-style' RAID drivers, which are included in stock kernels since the 2.4 series. For older kernels, you can find patches at http://people.redhat.com/mingo/raid-patches/. From Debian 3.0r0 APT http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

rain

packet builder for testing IP protocols implementations. rain is a powerful packet builder for testing stability of hardware and software utilizing IP protocols. It offers its users the capability of fully customizing their own packets with a wide variety of command line options. From Debian 3.0r0 APT http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RAIR

Random Access Information Retrieval From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RAM

Random Access Memory (RAM, IC) From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RAM device

is a block device that can be used as a disk but really points to a physical area of RAM. From Rute-Users-Guide http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RAM disk

An area of random-access memory (RAM) configured by a utility program to emulate a hard disk drive. Data stored in a RAM disk can be accessed more quickly than data stored on a disk drive, but this data is erased whenever you turn off or reboot the computer. See configuration file, device driver, and RAMDRIVE.SYS. From QUECID http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RAMDAC

Random Access Memory Digital to Analog Converter (RAM) From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RAMIS

Rapid Access Management Information System From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RAMP

Remote Access Maintenance Protocol From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RAMS

Record Archival Management System From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

ramsize

query/set image root device, RAM disk size, or video mode From whatis http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RAND

Rural Area Network Design From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

random

adj. 1. Unpredictable (closest to mathematical definition); weird. "The system's been behaving pretty randomly." 2. Assorted; undistinguished. "Who was at the conference?" "Just a bunch of random business types." 3. (pejorative) Frivolous; unproductive; undirected. "He's just a random loser." 4. Incoherent or inelegant; poorly chosen; not well organized. "The program has a random set of misfeatures." "That's a random name for that function." "Well, all the names were chosen pretty randomly." 5. In no particular order, though deterministic. "The I/O channels are in a pool, and when a file is opened one is chosen randomly." 6. Arbitrary. "It generates a random name for the scratch file." 7. Gratuitously wrong, i.e., poorly done and for no good apparent reason. For example, a program that handles file name defaulting in a particularly useless way, or an assembler routine that could easily have been coded using only three registers, but redundantly uses seven for values with non-overlapping lifetimes, so that no one else can invoke it without first saving four extra registers. What randomness! 8. n. A random hacker; used particularly of high-school students who soak up computer time and generally get in the way. 9. n. Anyone who is not a hacker (or, sometimes, anyone not known to the hacker speaking); the noun form of sense 2. "I went to the talk, but the audience was full of randoms asking bogus questions". 10. n. (occasional MIT usage) One who lives at Random Hall. See also J. Random, some random X. 11. [UK] Conversationally, a non sequitur or something similarly out-of-the-blue. As in: "Stop being so random!" This sense equates to `hatstand', taken from the Viz comic character "Roger Irrelevant - He's completely Hatstand." From Jargon Dictionary http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

random access memory (RAM)

The main memory of a computer. RAM is used for temporarily storing currently running applications and accessed data. From Redhat-9-Glossary http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

random-access memory digital-to-analog convertor (RAMDAC)

A chip in the video adapter that converts three digital signals (one for each primary color) into one analog signal that is sent to the monitor. RAMDACs use on-board randomaccess memory (RAM ) to store information before processing it. From QUECID http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

randtype

semi-random text typer Randtype is a small utility to output characters or lines at random intervals. There are a few command line options to refine the output. With it you can output files to the screen, and if you configured it well, it will look like someone is actually typing - with optional typos even. From Debian 3.0r0 APT http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

ranlib

generate index to archive. From whatis http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RAP

Remote Access Point From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RAP

[internet] Route Access Protocol (RFC 1476, Internet) From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RAPID

Resource And Performance Interactive Display system From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RAPS

Real Application on Parallel Systems From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RARE

Reseaux Associes pour la Recherche Europeenne (org.) From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

rarp

manipulate the system RARP table From whatis http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RARP

Reverse Address Resolution Protocol (Internet, RFC 903) From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

rarpd

Reverse Address Resolution Protocol daemon RARP is a protocol which allows individual devices on an IP network to get their own IP addresses from the RARP server. You need this daemon only if you have on your LAN machines like diskless Sun boxes. With kernels up to 2.2 you have the option of using the integrated RARP support instead of this daemon. From Debian 3.0r0 APT http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

ras

Adds redundancy files to archives for data recovery. Ras is a program that adds m extra files to a set of n files, such that the contents of the n original files can be regenerated from any n of the n+m original files and extra files. Normally, these extra files will all be 6 bytes larger then the largest of the original files, but ras has a mode in which the extra files are exactly the same size as the original files. Ras was originally intended for transporting a large file split over several floppy disks in a manner resilient to the corruption of a few of the disks, and a pair of example shell scripts to do this (rassplit and rasmerge) is included in the distribution. From Debian 3.0r0 APT http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RAS

Reliability, Availability and Serviceability (IBM) From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RAS

Remote Access Software From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RAS

Row Address Strobe (IC, DRAM) From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

rasmol

molecule visualization and rendering RasMol is a molecular graphics program intended for the visualisation of proteins, nucleic acids and small molecules. The program is aimed at display, teaching and generation of publication quality images. Currently supported input file formats include Brookhaven Protein Databank (PDB), Tripos' Alchemy and Sybyl Mol2 formats, Molecular Design Limited's (MDL) Mol file format, Minnesota Supercomputer Center's (MSC) XMol XYZ format and CHARMm format files. The loaded molecule may be shown as wireframe, cylinder (drieding) stick bonds, alpha-carbon trace, spacefilling (CPK) spheres, macromolecular ribbons (either smooth shaded solid ribbons or parallel strands), hydrogen bonding and dot surface. Rasmol homepage: http://klaatu.oit.umass.edu:80/microbio/rasmol/ From Debian 3.0r0 APT http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

rat

Unicast and multicast voice-over-IP application RAT is a network audio tool that allows users to participate in audio conferences over the Internet. These can be between two participants directly, or between a group of participants on a common multicast group. No special features are required to use RAT in point-to-point mode, but to use the multicast conferencing facilities of RAT, a connection to the Mbone, or a similar multicast capable network, is required. RAT is based on IETF standards, using RTP above UDP/IP as its transport protocol, and conforming to the RTP profile for audio and video conferences with minimal control. Further information is available on the WWW, at: http://www-mice.cs.ucl.ac.uk/multimedia/software/rat/index.html From Debian 3.0r0 APT http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

ratfor

Rational Fortran preprocessor for Fortran 77. Ratfor77 is a preprocessor that converts the Rational Fortran dialect into ordinary Fortran 77. The output can then be compiled using g77 or f2c + gcc. The Ratfor dialect provides C-like control structures and some syntactic sugar that makes Fortran programs easier to read and write. From Debian 3.0r0 APT http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

ratmenu

Creates X menus from the shell. This is ratmenu, a simple program that allows you to create X menus from the shell. It is a simplified version of 9menu, with the crucial difference that where 9menu only responds to the mouse, and ignores the keyboard, ratmenu has all mouse sensitivity taken out, and only responds to the keyboard. It is meant to be used with the ratpoison window manager. Although it should work with other window managers, YMMV. From Debian 3.0r0 APT http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RATP

Reliable Asynchronous Transfer Protocol (RFC 916) From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

ratpoison

Simple window manager with no fat library dependencies. ratpoison is a simple Window Manager with no fat library dependencies, no fancy graphics, no window decorations, and no flashy wank. It is largely modelled after GNU Screen which has done wonders in virtual terminal market. All interaction with the window manager is done through keystrokes. ratpoison has a prefix map to minimize the key clobbering that cripples EMACS and other quality pieces of software. From Debian 3.0r0 APT http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RATS

Radio-Amateur Telecommunications Society (org., USA) From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

rats

Rough Auditing Tool for Security RATS, the Rough Auditing Tool for Security, is a security auditing utility for C, C++, php, perl, and python code. RATS scans source code, finding potentially dangerous function calls. The goal of rats is not to definitively find bugs (yet), but to provide a reasonable starting point for performing manual security audits. The initial vulnerability database is taken directly from things that could be easily found when starting with the book, "Building Secure Software" by Viega and McGraw. From Debian 3.0r0 APT http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RAVE

Relational Advanced Visual Environment From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

raw

bind a Linux raw character device From whatis http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

raw

Linux IPv4 raw sockets From whatis http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

raw mode

A mode in which characters entered into the Linux system are read and interpreted one at a time. From Linux Guide @FirstLinux http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

rawrec

Buffered raw audio recorder/player The rawrec/rawplay utilities provide a simple way to record or play back raw audio data. Options exist to control the timing of the run, add silent guard time, jump into data files, set DSP parameters, and control buffer size and latency. rawrec should be particularly useful for scripting applications that need to deal with raw audio data. Compared to bplay, rawrec tries to do less (it only handles raw audio) and does it more correctly (all the options work right for raw audio. I think :). rawrec can work to or from standard io, so if you also get the sox program, you will be able to record and play a wide variety of sound formats. You will need a mixer program, such as aumix. From Debian 3.0r0 APT http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

Raymond, Eric

a software developer who has written a number of important Open Source programs including fetchmail and sed. Eric also maintains 8 FAQs, amd has written a number of influential papers including The Cathedral and the Bazaar: an analysis of how and why the Linux development model works. From Linux Guide @FirstLinux http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

razor

spam-catcher using a collaborative filtering network Vipul's Razor is a distributed, collaborative, spam detection and filtering network. Razor establishes a distributed and constantly updating catalogue of spam in propagation. This catalogue is used by clients to filter out known spam. On receiving a spam, a Razor Reporting Agent (run by an end-user or a troll box) calculates and submits a 20-character unique identification of the spam (a SHA Digest) to its closest Razor Catalogue Server. The Catalogue Server echos this signature to other trusted servers after storing it in its database. Prior to manual processing or transport-level reception, Razor Filtering Agents (end-users and MTAs) check their incoming mail against a Catalogue Server and filter out or deny transport in case of a signature match. Catalogued spam, once identified and reported by a Reporting Agent, can be blocked out by the rest of the Filtering Agents on the network. From Debian 3.0r0 APT http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

razzle

constantly changing 3D stereogram generator razzle generates constantly changing 3D stereograms using SVGAlib. For instructions on viewing stereograms, please see /usr/doc/razzle/README or the man page. WARNING! if you have an epileptic condition, *READ* /usr/doc/razzle/README. From Debian 3.0r0 APT http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RBA

Relative Byte Address From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

rbash

restricted bash, see bash(1) From whatis http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RBBS

Remote Bulletin Board System (BBS) From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RBF

Random Block Filemanager (OS-9) From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RBH

Remote Bridge Hub From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RBL

Realtime Blackhole List (Internet, SPAM) From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

rblcheck

Tool to Query RBL Servers This program is a very basic interface to DNS listings such as the RBL filter developed by Paul Vixie and the MAPS project. The basic idea of the filter is that when someone is blacklisted for email abuse of some sort, a new domain name is resolved of the form "2.0.0.127.domain.name.com", where 2.0.0.127 is the abusive IP address in reverse (for example, 2.0.0.127 would be the IP address 127.0.0.2), and "domain.name.com" is the base domain name of the filtering service (such as "blackholes.mail-abuse.org" for the MAPS project RBL filter). From Debian 3.0r0 APT http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RBM

Realtime Batch Monitor (OS, Xerox) From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RBMS

Remote Bridge Management Software From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RBOC

Regional Bell Operating Company (USA) From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

rbootd

Remote Boot Daemon The rbootd daemon is used for booting some HP workstations over the network (such as the 9000/300 and 9000/400 series). It can also boot PA RISC workstations. It handles the first stage of the boot sequence and can be used to start booting Linux, NetBSD or HPUX. From Debian 3.0r0 APT http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

rc

An implementation of the AT&T Plan 9 shell. rc is a command interpreter and programming language similar to sh(1). It is based on the AT&T Plan 9 shell of the same name. The shell offers a C-like syntax (much more so than the C shell), and a powerful mechanism for manipulating variables. It is reasonably small and reasonably fast, especially when compared to contemporary shells. Its use is intended to be interactive, but the language lends itself well to scripts. From Debian 3.0r0 APT http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RC

Reconfigurable Computer / Computing (RL) From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RC

Region Co-ordinator (FidoNet) From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RC

Release Candidate (MS) From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RC

Return Code (REXX, ...) From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RC

Routing Control From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RC File

A script file containing the startup instructions for a program (an application or even the operating system). The file, to be executed automatically when the operating system is started, contains a list of instructions (commands or other scripts) to run. From I-gloss http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

rc file

Script file containing startup instructions for an application program (or an entire operating system), usually a text file containing commands of the sort that might have been invoked manually once the system was running but are to be executed automatically each time the system starts up. From Linux Guide @FirstLinux http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RC2 (Rivest Cipher 2)

A popular symmetric block-cipher alogirthm created by Ron Rivest>. It allows keys between 1 and 2048 bits, though most implementations limits keys to 40-bits due to historic export controls. History: The algorithm was a trade-secret until it was posted anonymously in 1996 to USENET. Applications: SSL, SET From Hacking-Lexicon http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RC24

Ron's Code 2/4 (cryptography), "RC2/4" From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RC4 (Rivest Cipher 4, Arcfour, ARC4)

A symmetric stream cipher developed by RSA Data Security, Inc.. Whereas most ciphers have been optimized for hardware (e.g. DES), RC4 was optimized for software. Applications: SSL, which means RC4 is built into your Netscape and Microsoft web browser. CDPD (Cellular) connections for your Palm modem using OmniSky. Lotus Notes, MS Access, Adobe Acrobat, PPTP, Oracle Secure SQL. IEEE 802.11 WEP Key point: RC4 supports variable length keys (up to 2048-bits), but most uses are 40-bits due to historic export controls. History: The algorithm was a trade-secret until 1994 when somebody reverse engineered it and anonymously posted it to the cypherpunks list and USENET. This reverse engineered version is known as "Arcfour" or "ARC4", which stands for "Alleged RC4". It isn't patented. Therefore, RSA Inc. is trying to move all its customers to RC5, which is both patented and copyrighted. The source code is essentially: while (length--) { x++; sx = state[x]; y += sx; sy = state[y]; state[y] = sx; state[x] = sy; *data++ ^= state[(sx+sy)&0xFF];} RSA Inc. still claims that it is a trade secret; however, due to its simplicity, its description is in virtually all crypto textbooks -- it is the most widely known secret on the net. Key point: RC4 works by XORing the plain-text against a stream of random numbers. Unless a whitening seed is provided at the begining, the plain-text may be recovered. This is a common bug in products. From Hacking-Lexicon http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RC5

Rivest Cipher 5 (RFC 2040, cryptography) From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RC5

The successor to RC4. Key point: In order to promote RC5, RSA conducts contests that pay people if they can crack it. The first contest used a 56-bit key, took 212 days to crack by http://www.distributed.net/ using a total of roughly 1-million computers trying all possible 35,000,000,000,000,000 combinations. The message was "It is time to move to a longer key length.", and it was encrypted using the key 0x532B744CC20999. From Hacking-Lexicon http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

rcalc

A symbolic calculator for the GNOME desktop. rCalc is a scientific calculator for the GNOME desktop environment. It aims to occupy the middle ground between simple `point-and-click' calculators and full featured mathematical packages, and hopefully take some of the best of both worlds. From Debian 3.0r0 APT http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RCAS

Reserve Component Automation System From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RCC

Radio Common Carrier From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RCC

Regional Control Center From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RCC

Remote Cluster Controller From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RCC

Routing Control Center From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

rcconf

Debian Runlevel configuration tool This tool configures system services in connection with system runlevels. It turns on/off services using the scripts in /etc/init.d/. Rcconf works with both System-V style and file-rc runlevel configuration. It is a TUI frontend to the update-rc.d command. From Debian 3.0r0 APT http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

rccp

Console frontend to DCTC - Direct Connect (peer-based file-sharing) RCCP (Red Connect Console Program) is text front-end for the dctc program. Dctc handles all communication with dchubs and clients. RCCP is designed to allow both scripting and command line interaction. Besides supporting all the basic Direct Connect commands such as downloading, searching, uploading, resuming, multihub search etc RCCP can be scripted. Selected scripts from many included with the package: * multi hub spider search * last seen user script (ala irc !seen script) * list all files from all users * download bot - watches query results and downloads all of them * segmented downloading * ... plus many more ... Direct Connect protocol is intended for peer-based file-sharing. In practise it works better than gnutella and other similar systems as it allows dc hubs (servers) administators to require clients to share specified amount of data. The amount is usually based on type of client's connection and it is used not to hurt or exclude anybody but to make file sharing "fair play". From Debian 3.0r0 APT http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RCD

Receiver-Carrier Detector From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RCE

Regional Code Enhancement (DVD) From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RCE

Resident Command Extension (DOS) From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RCF

Reader's Comment Form (IBM) From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RCF

Remote Call-Forwarding From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RCGI

Remote Common Gateway Interface (CGI, WWW, Novell) From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RCL

Runtime Control Library From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RCM

Remote Carrier Module From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

rcp

OpenSSH SSH client (remote login program) From whatis http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RCP

Remote Copy Program From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

rcs

change RCS file attributes From whatis http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RCS

Overview of RCS. RCS, the revision control system, is a suite of programs that tracks changes in text files and controls shared access to files in work group situations. It is generally used to maintain source code modules. It lends itself to tracking revisions of document files as well. RCS was written by Walter F. Tichy and Paul Eggert. The latest version which has been ported to Linux is RCS Version 5.7. There is also a semi-official, threaded version available. Much of the information in this HOWTO is taken from the RCS man pages. RCS includes the rcs(1) program, which controls RCS archive file attributes, ci(1) and co(1), which check files in and out of RCS archives, ident(1), which searches RCS archives by keyword identifiers, rcsclean(1), a program to clean up files that are not being worked on or haven't changed, rcsdiff(1), which runs diff(1) to compare the revisions, rcsmerge(1), which merges two RCS branches into a single working file, and rlog(1), which prints RCS log messages. Files archived by RCS may be text of any format, or binary if the diff program used to generate change files handles 8-bit data. Files may optionally include identification strings to aid in tracking by ident(1). RCS uses the utilities diff(1) and diff3(3) to generate the change files between revisions. A RCS archive consists of the initial revision of a file, which is version 1.1, and a series of change files, one for each revision. Each time a file is checked out of an archive with co(1), edited, and checked back into the archive with ci(1), the version number is increased, for example, to 1.2, 1.3, 1.4, and so on for successive revisions. The archives themselves commonly reside in a ./RCS subdirectory, although RCS has other options for archive storage. For an overview of RCS, see the rcsintro(1) manual page. From RCS-HOWTO http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RCS

Reloadable Control Storage From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RCS

Remote Connection Service (IBM, OS/2, LAN) From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RCS

Resource Construction Set From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RCS

Revision Control System (Unix, CM, GNU) From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

rcs

The GNU Revision Control System The Revision Control System (RCS) manages multiple revisions of files. RCS automates the storing, retrieval, logging, identification, and merging of revisions. RCS is useful for text that is revised frequently, for example programs, documentation, graphics, papers, and form letters. From Debian 3.0r0 APT http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RCS (Revision Control System)

A suite of programs that controls shared access to files in a group environment and tracks text file changes. Generally used for maintaining programming source code modules. From I-gloss http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

rcs-latex

LaTeX macro package for handling RCS keywords This allows the user to typeset RCS keywords in their document without being concerned about dollar signs and the like. From Debian 3.0r0 APT http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

rcs2log

generates a changelog from RCS files From whatis http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

rcsclean

clean up working files From whatis http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

rcsdiff

compare RCS revisions From whatis http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

rcsfreeze

freeze a configuration of sources checked in under RCS From whatis http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

rcsmerge

merge RCS revisions From whatis http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RCTC

Rewritable Consumer Time Code (video) From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RCTL

Resistor-Capacitor-Transistor Logic From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RD

Receive Data (MODEM) From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RD

Recursive Design (CASE) From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RD

Remove Directory (DOS, OS/2) From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RD

Research and Development, "R&D" From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RD

Route Descriptor From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RDA

Remote Database Access (ISO, OSI) From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

rdate

Set the system's date from a remote host. Rdate displays and sets the local date and time from the host name or address given as the argument. It uses the RFC868 protocol which is usually implemented as a built-in service of inetd(1). From Debian 3.0r0 APT http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

rdate

The rdate utility retrieves the date and time from another machine on your network, using the protocol described in RFC 868. If you run rdate as root, it will set your machine's local time to the time of the machine that you queried. From Redhat 8.0 RPM http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RDB

Receive Data Buffer From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RDB

Relational DataBase (DB) From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RDB

Rigid Disk Block (Amiga, Commodore) From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RDBMS

Relational DataBase Management System (DBMS, DB) From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RDBMSMIB

Relational DataBase Management System - Management Information Base (DB), "RDBMS-MIB" From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RDC

Remote Data Connector From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RDD

Random Digital Dial From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RDD

Replaceable Database Driver (Clipper, CA-VO, DB) From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RDE

Received Data Enable From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RDES

Remote Data Entry System From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

rdesktop

rdesktop is an open source client for Windows NT Terminal Server and Windows 2000 Terminal Services, capable of natively speaking Remote Desktop Protocol (RDP) in order to present the user's NT desktop. Unlike Citrix ICA, noserver extensions are required. rdesktop currently runs on most UNIX based platforms with the X Window System, and other ports should be fairly straightforward.From Mandrake 9.0 RPM http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

rdesktop

RDP client for Windows NT/2000 Terminal Server rdesktop is an open source client for Windows NT/2000 Terminal Server, capable of natively speaking its Remote Desktop Protocol (RDP) in order to present the user's NT/2000 desktop. Unlike Citrix ICA, no server extensions are required. From Debian 3.0r0 APT http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

Rdev

A utility for obtaining information about a Linux system. It is used to query and set the image root device, the video mode, the swap device and a RAM disk. From I-gloss http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

rdev

query/set image root device, RAM disk size, or video mode From whatis http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

rdev

A utility which can be used to obtain information about your Linux system. It can query/set the image root device, the swap device, the RAM disk size or video mode. From Linux Guide @FirstLinux http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RDF

Rate Decrease Factor From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RDF

Record Definition Field From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RDF

Resource Description Framework (IBM, Netscape, MS, ..., WWW) From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RDH

RSA-DES-Hybridverschluesselung (cryptography, HBCI) From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RDI

Remote Defect Identification / Indicator (UNI) From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

rdiff

Binary diff tool for signature-based differences rdiff is a little like diff and patch all rolled into one, with support for binary files. rdiff is a tool to do this. From Debian 3.0r0 APT http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

rdiff-backup

Backup program to use deltas for history rdiff-backup is a script that backs up one directory to another. The target directory ends up a copy of the source directory, but extra reverse diffs are stored in a special subdirectory of that target directory, so you can still recover files lost some time ago. The idea is to combine the best features of a mirror and an incremental backup. rdiff-backup also preserves subdirectories, symlinks, special files, permissions, uid/gid ownership (if it is running as root), and modification times. Finally, rdiff-backup can operate in a bandwidth efficient manner over a pipe, like rsync. Thus you can use rdiff-backup and ssh to securely back a hard drive up to a remote location, and only the differences will be transmitted. From Debian 3.0r0 APT http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

rdist

is an open source program to maintain identical copies of files over multiple hsots. It preserves the owner, group, mode, and mtime of files if possible and can update programs that are executing. Almost all versions of UNIX include rdist. However, most that do include a very old version sometimes referred to as "4.2BSD rdist", "rdist classic", or "rdsit version 3". From MagniComp http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

rdist

Remote file distribution client and server. Rdist is a program to maintain identical copies of files over multiple hosts. It preserves the owner, group, mode, and mtime of files if possible and can update programs that are executing. From Debian 3.0r0 APT http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

rdist

The RDist program maintains identical copies of files on multiple hosts. If possible, RDist will preserve the owner, group, mode, andmtime of files and it can update programs that are executing. From Redhat 8.0 RPM http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RDL

Relational Database Language (DB) From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RDL

Remote Digital Loopback From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RDLAP

Radio Data Link Access Protocol (MODACOM), "RD-LAP" From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RDM

Relational Data Modeler From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RDM

Reliably Delivered Message From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RDN

Relative Distinguished Name (X.500) From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RDNCRC

Research Data Network Cooperative Research Centre (org., Australia) From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RDO

??? (CICS, IBM) From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RDO

??? (CICS, IBM) From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RDO

Remote Data Objects (DB) From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RDP

Reliable Datagram Protocol From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RDP

Remote Desktop Protocol (MS) From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RDP

Remote Display Protocol (MS, Windows NT, ASP) From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RDR

Request Data with Reply (Feldbus) From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RDRAM

Rambus Dynamic Random Access Memory (RAM, IC, Rambus) From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RDRN

Rapidly Deployable Radio Networks (USA, Uni Kansas) From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RDS

Radio Digital System From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RDS

Rapid Development System (DB, Informix) From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RDS

Remote Data Services From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RDSN

Region Digital Switched Network From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RDT

Radio Digital Terminal From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RDT

Restricted Data Transmissions From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

rdtool

RD document formatter RD is Ruby's POD. RDtool is formatter for RD. From Debian 3.0r0 APT http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

rdtool-elisp

Emacs-lisp rd-mode for writing RD document Emacs major mode for RD editing. From Debian 3.0r0 APT http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RE

Research and Engineering, "R&E" From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

re

Russian Anywhere -- russian text converter Russian Anywhere is a russian character decoding program. It allow transfer russian characters between different codepages. It's main purpose is to convert damaged russian e-mail messages to readable form and also may be used to convert files from/to known and unknown codepages. From Debian 3.0r0 APT http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

re2c

Tool for generating fast C-based recognizers re2c is a great tool for writing fast and flexible lexers. Unlike other such tools, re2c concentrates solely on generating efficient code for matching regular expressions. Not only does this singleness make re2c more suitable for a wider variety of applications, it allows us to generate scanners which approach hand-crafted ones in terms of size and speed. From Debian 3.0r0 APT http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

REACH

Research and Educational Applications of Computers in the Humanities From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

READ

Relative Element Address Designate (cryptography) From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

read-edid

hardware information-gathering tool for VESA PnP monitors read-edid consists of two tools; get-edid uses a VESA VBE 2 interrupt service routine request to read a 128 byte EDID version 1 structure from your graphics card, which retrieves this information from the monitor via the Data Display Channel (DDC). parse-edid parses this data structure and outputs data about the monitor suitable for inclusion into an XF86Config file. get-edid uses real-mode x86 instructions to communicate with the video hardware; therefore, it is usable only by root, and this package is only available for the i386 architecture. From Debian 3.0r0 APT http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

read-only

A file that can be read (copied, and so on) but not written (changed). Linux has a system of permissions that enables the owner of the file, the owner's group, or all users to have or not have permission to read, write, or execute file. From Linux Guide @FirstLinux http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

read-only

Data or storage device that can be accessed and read but cannot be modified. From Redhat-9-Glossary http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

readelf

Displays information about ELF files. From whatis http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

readline

The Readline library provides a set of functions that allow users to edit command lines. Both Emacs and vi editing modes are available. The Readline library includes additional functions for maintaining a listof previously-entered command lines for recalling or editing thoselines, and for performing csh-like history expansion on previous commands. From Redhat 8.0 RPM http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

readlink

display target of symbolic link on standard output From whatis http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

readlink

read value of a symbolic link From whatis http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

README

A roadmap of your source distribution. By ancient convention, this is the first file intrepid explorers will read after unpacking the source. From Linux Guide @FirstLinux http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

README

A text file that comes with some software and gives information on the program, often additional information not found in the manual. From Redhat-9-Glossary http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

README

Any essential information. This is usually an explanation of what the package does, promotional material, and anything special that need be done to install the package. From Rute-Users-Guide http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

README file

n. Hacker's-eye introduction traditionally included in the top-level directory of a Unix source distribution, containing a pointer to more detailed documentation, credits, miscellaneous revision history, notes, etc. (The file may be named README, or READ.ME, or rarely ReadMe or readme.txt or some other variant.) In the Mac and PC worlds, software is not usually distributed in source form, and the README is more likely to contain user-oriented material like last-minute documentation changes, error workarounds, and restrictions. When asked, hackers invariably relate the README convention to the famous scene in Lewis Carroll's "Alice's Adventures In Wonderland" in which Alice confronts magic munchies labeled "Eat Me" and "Drink Me". From Jargon Dictionary http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

readprofile

a tool to read kernel profiling information From whatis http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

readseq

[Biology] Conversion between sequence formats Reads and writes nucleic/protein sequences in various formats. Data files may have multiple sequences. Readseq is particularly useful as it automatically detects many sequence formats, and converts between them. URL: ftp://ftp.bio.indiana.edu/molbio/readseq/version1 From Debian 3.0r0 APT http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

real

adj. Not simulated. Often used as a specific antonym to virtual in any of its jargon senses. From Jargon Dictionary http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

real time

1. [techspeak] adj. Describes an application which requires a program to respond to stimuli within some small upper limit of response time (typically milli- or microseconds). Process control at a chemical plant is the canonical example. Such applications often require special operating systems (because everything else must take a back seat to response time) and speed-tuned hardware. 2. adv. In jargon, refers to doing something while people are watching or waiting. "I asked her how to find the calling procedure's program counter on the stack and she came up with an algorithm in real time." From Jargon Dictionary http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

Real time OS

a real-time operating system is able to execute all of its tasks without violating specified timing constraints. From Linux Guide @FirstLinux http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

real user

n. 1. A commercial user. One who is paying real money for his computer usage. 2. A non-hacker. Someone using the system for an explicit purpose (a research project, a course, etc.) other than pure exploration. See user. Hackers who are also students may also be real users. "I need this fixed so I can do a problem set. I'm not complaining out of randomness, but as a real user." See also luser. From Jargon Dictionary http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

Real World

n. 1. Those institutions at which `programming' may be used in the same sentence as `FORTRAN', `COBOL', `RPG', `IBM', `DBASE', etc. Places where programs do such commercially necessary but intellectually uninspiring things as generating payroll checks and invoices. 2. The location of non-programmers and activities not related to programming. 3. A bizarre dimension in which the standard dress is shirt and tie and in which a person's working hours are defined as 9 to 5 (see code grinder). 4. Anywhere outside a university. "Poor fellow, he's left MIT and gone into the Real World." Used pejoratively by those not in residence there. In conversation, talking of someone who has entered the Real World is not unlike speaking of a deceased person. It is also noteworthy that on the campus of Cambridge University in England, there is a gaily-painted lamp-post which bears the label `REALITY CHECKPOINT'. It marks the boundary between university and the Real World; check your notions of reality before passing. This joke is funnier because the Cambridge `campus' is actually coextensive with the center of Cambridge town. See also fear and loathing, mundane, and uninteresting. From Jargon Dictionary http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

realpath

Return the canonicalized absolute pathname The package contains a small utility realpath, which converts each pathname argument to an absolute pathname, which has no components that are symbolic links or the special . or .. directory. From Debian 3.0r0 APT http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

realtimebattle

Programming game RealTimeBattle is a programming game in which robots controlled by programs are fighting each other. The goal is to destroy the enemies, using the radar to examine the environment and the cannon to shoot. Robot programs can be written in any language, all communication with the main program is done via stdout/stdin. From Debian 3.0r0 APT http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

reboot

reboot or enable/disable Ctrl-Alt-Del From whatis http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

reboot

stop the system. From whatis http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

reboot

To restart a computer without turning off the power. From Redhat-9-Glossary http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

recite

English text speech synthesizer Recite is a program to do speech synthesis. The quality of sound produced is not terribly good, but it should be adequate for reporting the occasional error message verbally. Given some English text, recite will convert it to a series of phonemes, then convert the phonemes to a sequence of vocal tract parameters, and then synthesise the sound a vocal tract would make to say the sentence. Recite can perform a subset of these operations, so it can be used to convert text into phonemes, or to produce an utterance based on vocal tract parameters computed by some other program. From Debian 3.0r0 APT http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

recode

Character set conversion utility. Free `recode' converts files between character sets and usages. When exact transliterations are not possible, it may get rid of the offending characters or fall back on approximations. This program recognizes or produces nearly 150 different character sets and is able to transliterate files between almost any pair. Most RFC 1345 character sets are supported. From Debian 3.0r0 APT http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

recode

The GNU recode utility converts files between various character sets. From Mandrake 9.0 RPM http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

records-common

Save and index notes in Emacs environment Records-mode is a major mode for editing and indexing notes. Notes are per-day files containing one or more subjects, subjects from different days are indexed and can be traversed, etc. From Debian 3.0r0 APT http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

records-gnuemacs

Save and index notes in Emacs environment Records-mode is a major mode for editing and indexing notes. Notes are per-day files containing one or more subjects, subjects from different days are indexed and can be traversed, etc. From Debian 3.0r0 APT http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

records-xemacs

Save and index notes in Emacs environment Records-mode is a major mode for editing and indexing notes. Notes are per-day files containing one or more subjects, subjects from different days are indexed and can be traversed, etc. From Debian 3.0r0 APT http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

recover

Undelete files on ext2 partitions Recover automates some steps as described in the ext2-undeletion howto. This means it seeks all the deleted inodes on your hard drive with debugfs. When all the inodes are indexed, recover asks you some questions about the deleted file. These questions are: * Hard disk device name * Year of deletion * Month of deletion * Weekday of deletion * First/Last possible day of month * Min/Max possible file size * Min/Max possible deletion hour * Min/Max possible deletion minute * User ID of the deleted file * A text string the file included (can be ignored) If recover found any fitting inodes, it asks to give a directory name and dumps the inodes into the directory. Finally it asks you if you want to filter the inodes again (in case you typed some wrong answers). From Debian 3.0r0 APT http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

Recovery Is Possible! (RIP)

RIP is a CD or floppy boot/rescue/backup system. It has support for a lot of filesystem types (Reiserfs, ext2/3, iso9660, UDF, XFS, JFS, UFS, HPFS, MINIX, MS DOS, NTFS, UMSDOS, and VFAT) and contains a bunch of utilities for system recovery. It might also be possible to install and boot it from a LS-120 floppy drive. It has been designed for non-networked stand-alone home PC hard drive booting and rescue. Only the CD version has UDF/HPFS/MINIX/XFS/JFS filesystem support. V51 was released March 21, 2002. V53 was released June 15, 2003. A 'special purpose/mini' distribution. From LWN Distribution List http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

red

text editor From whatis http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

Red Flag

Red Flag also claims to be the leading Linux OS provider in China. Redflag Linux Desktop 3.2 beta was released August 12, 2002. From LWN Distribution List http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

Red Hat Linux

Red Hat, Inc. is perhaps the best known distribution. Red Hat Linux 9 became available to Red Hat Network subscribers on March 31, 2003 and generally available on April 7, 2003. From LWN Distribution List http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RedBlue Linux

Esfia, Inc. is based in Taipei, Taiwan. Its RedBlue Linux is used in the company's BlueTooth enabled PDA. From LWN Distribution List http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

redhat-config-date

redhat-config-date is a graphical interface for changing the system date and time, configuring the system time zone, and setting up the NTP daemon to synchronize the time of the system with a NTP time server. From Redhat 8.0 RPM http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

redhat-config-httpd

A graphical configuration tool for the Apache Web server. From Redhat 8.0 RPM http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

redhat-config-keyboard

redhat-config-keyboard is a graphical user interface that allows the user to change the default keyboard of the system. From Redhat 8.0 RPM http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

redhat-config-kickstart

redhat-config-kickstart is a graphical tool for creating kickstart files. From Redhat 8.0 RPM http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

redhat-config-language

redhat-config-language is a graphical user interface thatallows the user to change the default language of the system. From Redhat 8.0 RPM http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

redhat-config-mouse

redhat-config-mouse is a graphical user interface that allows the user to change the default mouse of the system. From Redhat 8.0 RPM http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

redhat-config-network

Netconf is the network configuration tool for Red Hat Linux, supporting ethernet, ADSL, ISDN, and PPP. It can also configure firewalls and masquerading, and can use profiles. From Redhat 8.0 RPM http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

redhat-config-nfs

redhat-config-nfs is a graphical user interface for creating, modifying, and deleting nfs shares. From Redhat 8.0 RPM http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

redhat-config-packages

redhat-config-packages is the package manager for Red Hat Linux. It supports installation of interesting packages from CD. From Redhat 8.0 RPM http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

redhat-config-printer

The printconf utility is a printer configuration and filtration system based on magicfilter (the alchemist data library) and the foomaticfilter system. It rebuilds local print configuration and spool directories from data sources at lpd init time, and is integrated touse the multi-sourced features of the alchemist data library. From Redhat 8.0 RPM http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

redhat-config-printer-gui

The printconf-gui package contains a GUI tool for the printconfutility. From Redhat 8.0 RPM http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

redhat-config-proc

This is a tool for configuring operating system tunable parameters. It eases modifying /etc/sysctl.conf. From Redhat 8.0 RPM http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

redhat-config-rootpassword

redhat-config-rootpassword is a graphical user interface that allow sthe user to change the root password of the system. From Redhat 8.0 RPM http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

redhat-config-securitylevel

redhat-config-securitylevel is a graphical user interface for setting basic firewall rules. From Redhat 8.0 RPM http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

redhat-config-services

redhat-config-services is a utility which allows you to configure which services should be enabled on your machine. From Redhat 8.0 RPM http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

redhat-config-soundcard

redhat-config-soundcard is a graphical user interface thatd etects and configures the soundcard(s) on the system. From Redhat 8.0 RPM http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

redhat-config-users

Redhat-config-users is a graphical utility for administrating users and groups. It depends on the libuser library. From Redhat 8.0 RPM http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

redhat-config-xfree86

redhat-config-xfree is a graphical user interface that allows the user to configure their XFree86 Xserver. From Redhat 8.0 RPM http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

redhat-logos

The redhat-logos package (the "Package") contains files of the Red Hat "Shadow Man" logo and the RPM logo (the "Logos"). Red Hat, the RedHat "Shadow Man" logo, RPM, and the RPM logo are trademarks or registered trademarks of Red Hat, Inc. in the United States and other countries. See the included COPYING file for information on copying and redistribution. From Redhat 8.0 RPM http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

redhat-logviewer

Red Hat Log Viewer is a graphical interface for viewing and searching log files. From Redhat 8.0 RPM http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

redhat-menus

This package contains the XML files that describe the menu layout for GNOME and KDE, and the .desktop files that define the names and icons of "subdirectories" in the menus. From Redhat 8.0 RPM http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

redhat-release

The redhat-release package identifies the release of Red Hat Linux. From Redhat 8.0 RPM http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

redhat-rpm-config

Red Hat specific rpm configuration files. From Redhat 8.0 RPM http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

redhat-switch-printer

redhat-switch-printer is the Printing System Switcher for Red Hat Linux. It enables users to easily switch between various printing systemthat they have installed. From Redhat 8.0 RPM http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

redhat-switch-printer-gnome

The redhat-switch-printer-gnome package contains a GNOME interface for the The Printing System Switcher. From Redhat 8.0 RPM http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

redhat-switchmail

The Mail Transport Agent Switcher is a tool which enables users to easily switch between various Mail Transport Agents that they have installed. From Redhat 8.0 RPM http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

redhat-switchmail-gnome

The redhat-switchmail-gnome package contains a GNOME interface for the Red Hat Mail Transport Agent Switcher. From Redhat 8.0 RPM http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RedHawk Linux

Concurrent Computer Corporation's RedHawk Linux is not a mini-distribution, but as a full featured real-time distribution, it is somewhat specialized. It's an industry-standard, POSIX-compliant, real-time version of Linux, based on the Red Hat Linux distribution. RedHawk features high I/O throughput, fast response to external events, and optimized interprocess communication. Version 1.3 was released May 22, 2003. A 'special purpose/mini' distribution. From LWN Distribution List http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

RedIce-Linux

REDSonic's REDICE-Linux is a real-time Linux kernel, designed to support mission and time critical applications and provide quality of service to your system. From LWN Distribution List http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

redir

Redirect TCP connections It can run under inetd or stand alone (in which case it handles multiple connections). Its 8 bit clean, not limited to line mode, is small and light. Supports FTP redirects and supports transparency support. redir is all you need to redirect traffic across firewalls authenticate based on an IP address etc etc. No need for the firewall toolkit. The functionality of inetd/tcpd and "redir" will allow you to do everything you need without screwy telnet/ftp etc gateways. (I assume you are running IP Masquerading of course.) From Debian 3.0r0 APT http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

redirection

Accepting input from a source other than the standard input or sending output to a destination other than the standard output. Use the less than sign (<) for redirection of input and the greater than sign (>) for redirection of output. From Linux Guide @FirstLinux http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

Redirection Symbol

The > keyboard character. It is often used to send the output from a command to a text file. For example, ls -a > output.txt sends the current directory list to a file called output.txt. Repeating the command will replace the content of the file with new data. (Also, see Append Symbol and Piping Symbol.) From I-gloss http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

redundant arrays of independent disks (RAID)

The use of two or more disk drives in a single computer system, which can provide better disk performance, error recovery, and fault tolerance. From Redhat-9-Glossary http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

REGEX

REGular EXpressions (GREP, EMACS, ...) From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

regexp

/reg'eksp/ n. [Unix] (alt. `regex' or `reg-ex') 1. Common written and spoken abbreviation for `regular expression', one of the wildcard patterns used, e.g., by Unix utilities such as grep(1), sed(1), and awk(1). These use conventions similar to but more elaborate than those described under glob. For purposes of this lexicon, it is sufficient to note that regexps also allow complemented character sets using ^; thus, one can specify `any non-alphabetic character' with [^A-Za-z]. 2. Name of a well-known PD regexp-handling package in portable C, written by revered Usenetter Henry Spencer <henry@zoo.toronto.edu>. From Jargon Dictionary http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

regexp

See regular expression. From Linux Guide @FirstLinux http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

regexplorer

A visual regular expression explorer RegExplorer is a visual regular expression explorer, it allows for writing regular expressions and visually see the matches, thus making regular expression much easier to write and maintain. More information can be found at the RegExplorer web site http://regexplorer.sourceforge.net/ From Debian 3.0r0 APT http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

regina-rexx

The Regina REXX interpreter. Regina is Anders Christensen's REXX interpreter for Unix and VMS. REXX is a procedural language that allows programs and algorithms to be written in a clear and structured way, it is also designed to be used as a macro language by arbitrary application programs. Contains the Regina REXX interpreter (regina and rexx), and external function package to interface to curses library. From Debian 3.0r0 APT http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

regina2

The Regina REXX interpreter, run-time library. Regina is Anders Christensen's REXX interpreter for Unix and VMS. REXX is a procedural language that allows programs and algorithms to be written in a clear and structured way, it is also designed to be used as a macro language by arbitrary application programs. Contains runtime shared libraries. From Debian 3.0r0 APT http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

REGIS

REmote Graphics Instruction Set From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

register dancing

n. Many older processor architectures suffer from a serious shortage of general-purpose registers. This is especially a problem for compiler-writers, because their generated code needs places to store temporaries for things like intermediate values in expression evaluation. Some designs with this problem, like the Intel 80x86, do have a handful of special-purpose registers that can be pressed into service, providing suitable care is taken to avoid unpleasant side effects on the state of the processor: while the special-purpose register is being used to hold an intermediate value, a delicate minuet is required in which the previous value of the register is saved and then restored just before the official function (and value) of the special-purpose register is again needed. From Jargon Dictionary http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

REGTP

REGulierungsbehoerde fuer Telekommunikation und Post Org., Germany, "RegTP" From VERA http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

regular expression

A set of symbols, including text and metacharacters, used to search for text. The most common components are the period (.), which matches one character; the asterisk (*), which matches any number of characters; and brackets ([string]), which list a set of characters to be matched. From Linux Guide @FirstLinux http://www.tldp.org/LDP/Linux-Dictionary/html/index.html

Regular Expressions

A regular expression is a sequence of characters that forms a template used to search for strings [Words, phrases, or just about any sequence of characters. ] within text. In other words, it is a search pattern. To get an idea of when you would need to do