Letter: B
- basesystem-8.0-5.1.1: The skeleton package which defines a simple Red Hat Linux system.
- bash-3.2-24.el5: The GNU Bourne Again shell (bash) version 3.2
- bc-1.06-21: GNU's bc (a numeric processing language) and dc (a calculator).
- bcel-5.1-8jpp.1: Byte Code Engineering Library
- beecrypt-4.1.2-10.1.1: An open source cryptography library.
- bind-9.3.6-4.P1.el5_5.3: The Berkeley Internet Name Domain (BIND) DNS (Domain Name System) server.
- binutils-2.17.50.0.6-14.el5: A GNU collection of binary utilities.
- bison-2.3-2.1: A GNU general-purpose parser generator.
- bitmap-fonts-0.3-5.1.1: Selected set of bitmap fonts
- bitstream-vera-fonts-1.10-7: Bitstream Vera Fonts
- blktrace-1.0.0-6.el5: Utilities for performing block layer IO tracing in the linux kernel
- bluez-hcidump-1.32-1: Bluetooth HCI protocol analyser
- bluez-libs-3.7-1.1: Bluetooth libraries
- bluez-utils-3.7-2.2: Bluetooth utilities
- bogl-0.1.18-13.el5: A terminal program for displaying Unicode on the console.
- boost-1.33.1-10.el5: The Boost C++ Libraries
- bootparamd-0.17-26.el5: A server process which provides boot information to diskless clients.
- booty-0.80.6-7: simple python bootloader config lib
- bridge-utils-1.1-2: Utilities for configuring the linux ethernet bridge
- brltty-3.7.2-4.el5: Braille display driver for Linux/Unix.
- bsf-2.3.0-11jpp.1: Bean Scripting Framework
- bsh-1.3.0-9jpp.1: Lightweight Scripting for Java
- bug-buddy-2.16.0-2.el5: A bug reporting utility for GNOME
- busybox-1.2.0-7.el5: Statically linked binary providing simplified versions of system commands
- byacc-1.9-29.2.2: A public domain Yacc parser generator.
- bzip2-1.0.3-6.el5_5: A file compression utility.