Letter: R
- R - A language for data analysis and graphics
 - R-devel - files for development of R packages.
 - R-gnomeGUI - GNOME Console for R
 - R-hdf5 - Interface to the NCSA HDF5 library
 - R-mAr - R module to evaluate functions for multivariate AutoRegressive analysis
 - R-waveslim - R module, Basic wavelet routines for 1,2 and 3-dimensional signal processing
 - R-wavethresh - R module, Software to perform wavelet statistics and transforms
 - Ri-li - Arcade game where you drive a toy wood engine
 - radiusclient-ng - RADIUS protocol client library
 - radiusclient-ng-devel - Development files for radiusclient-ng
 - radiusclient-ng-utils - Utility programs for radiusclient-ng
 - rafkill - Top-down shooter with powerups
 - ragel - Finite state machine compiler
 - raidem - 2d top-down shoot'em up
 - rapidsvn - Graphical interface for the Subversion revision control system
 - raptor - Raptor RDF Parser Toolkit for Redland
 - raptor-devel - Libraries, includes etc to develop with Raptor RDF parser library
 - rasqal - Rasqal RDF Query Library
 - rasqal-devel - Development files for the Rasqal RDF libraries
 - ratpoison - Minimalistic window manager
 - rawstudio - Raw-image converter
 - rb_libtorrent - A C++ BitTorrent library aiming to be the best alternative
 - rb_libtorrent-devel - Development files for rb_libtorrent
 - rblcheck - Command-line interface to RBL-style listings
 - rbldnsd - Small, fast daemon to serve DNSBLs
 - rdiff-backup - Convenient and transparent local/remote incremental mirror/backup
 - recode - Conversion between character sets and surfaces
 - recode-devel - Header files and static libraries for development using recode
 - regexxer - A nifty GUI search/replace tool
 - regionset - Reads/sets the region code of DVD drives
 - rekall - A KDE database front-end application
 - rekall-docs - Rekall documentation
 - rekall-extra - Rekall Extra Stuff Plugin
 - rekall-mysql - Rekall MySQL driver
 - rekall-postgresql - Rekall PostgreSQL driver
 - rekall-python - Rekall Python support
 - rekall-sqlite - Rekall SQLite support
 - ren - Rename multiple files
 - renrot - A program to rename and rotate files according to EXIF tags
 - repoml - Tools and data for working with RepoML files
 - repoview - Creates a set of static HTML pages in a yum repository
 - revelation - Password manager for GNOME 2
 - rinetd - TCP redirection server
 - rkhunter - A host-based tool to scan for rootkits, backdoors and local exploits
 - rlog - Runtime Logging for C++
 - rlog-devel - Runtime Logging for C++ - development files
 - rlwrap - Wrapper for GNU readline
 - rman - Converts man pages to various other formats
 - rocksndiamonds - Underground digging game
 - rogue - The original graphical adventure game
 - root-tail - Displays a given file anywhere on your X11 root window
 - rootsh - Shell wrapper for auditing
 - rosegarden4 - MIDI, audio and notation editor
 - roundcubemail - Round Cube Webmail is a browser-based multilingual IMAP client
 - roundup - Simple and flexible issue-tracking system
 - rpl - Intelligent recursive search/replace utility
 - rpld - RPL/RIPL remote boot daemon
 - rpmDirectoryCheck - Tool to detect some RPM packaging errors
 - rpmdevtools - RPM Development Tools
 - rpmlint - Tool for checking common errors in RPM packages
 - rpy - Python interface to the R language
 - rrdtool - Round Robin Database Tool to store and display time-series data
 - rrdtool-devel - RRDtool libraries and header files
 - rrdtool-doc - RRDtool documentation
 - rrdtool-perl - Perl RRDtool bindings
 - rrdtool-php - PHP RRDtool bindings
 - rrdtool-python - Python RRDtool bindings
 - rrdtool-tcl - Tcl RRDtool bindings
 - rsibreak - A small utility which bothers you at certain intervals
 - rsnapshot - Local and remote filesystem snapshot utility
 - rss-glx - Really Slick Screensavers
 - rss-glx-gnome-screensaver - Really Slick Screensavers
 - rss-glx-kde - Really Slick Screensavers
 - rss-glx-xscreensaver - Really Slick Screensavers
 - rt3 - Request tracker 3
 - rtorrent - BitTorrent client based on libtorrent
 - rtpproxy - A symmetric RTP proxy
 - ruby-activerecord - Implements the ActiveRecord pattern for ORM
 - ruby-activesupport - Utility classes and extension to Ruby's standard library
 - ruby-amazon - Ruby interface to Amazon Web Services
 - ruby-amazon-doc - Documentation for ruby-amazon
 - ruby-bdb - Sleepycat Berkeley DB and DB XML
 - ruby-bsearch - Binary search library for Ruby
 - ruby-fam - Gamin/FAM bindings for Ruby
 - ruby-gettext-package - Localization Library and Tools for Ruby
 - ruby-gettext-package-doc - Documentation for ruby-gettext-package
 - ruby-hyperestraier - Hyper Estraier Library for Ruby
 - ruby-mecab - Ruby binding for MeCab
 - ruby-mysql - A Ruby interface to MySQL
 - ruby-ncurses - A module for ruby applications for using ncurses interfaces
 - ruby-postgres - A Ruby interface for the PostgreSQL database engine
 - ruby-qdbm - QDBM Database Library for Ruby
 - ruby-romkan - Romaji <-> Kana conversion library for Ruby
 - ruby-shadow - Ruby bindings for shadow password access
 - ruby-sqlite3 - A Ruby interface for the SQLite database engine
 - ruby-zoom - Ruby binding to ZOOM
 - rubygems - The Ruby standard for packaging ruby libraries
 - rudeconfig - Library (C++ API) for reading and writing configuration/.ini files
 - rudeconfig-devel - Development files for rudeconfig
 - rxvt - ouR XVT, a VT102 emulator for the X window system
 - rxvt-unicode - Rxvt-unicode is an unicode version of rxvt
 - rzip - A large-file compression program