BW whois is a modern whois client that works as a full-featured Web application or as a commandline tool. It is flexible and configurable with self-detecting CGI support, multiple security options in the CGI mode, a mature TLD table, database caching (using MySQL or PostgreSQL), and many more options and features.
Butterfly is a timing system designed for environments in which time spent on the Internet is charged for. Using ipchains(8) firewalling software, the Butterfly daemon cooperates with a web-based administration interface and a client interface to control time spent browsing. The ISP Edition allows the creation of several 'sites' and provides detailed accounting information for all the sites included.
BusyBox combines tiny versions of many common UNIX utilities into a single small executable. It provides minimalist replacements for most of the utilities you usually find in GNU fileutils, shellutils, etc. The utilities in BusyBox generally have fewer options than their full-featured GNU cousins; however, the options that are included provide the expected functionality and behave very much like their GNU counterparts. BusyBox provides a fairly complete POSIX environment for any small or embedded system.
Bbb is a set of utilities for burning to CD-R and CD-RW media. It allows one to easily perform tasks such as burning the contents of a directory, burning an audio CD, burning a CD image, and copying CD media from the command line. Bbb is implemented as several simple tools, which may be used easily in standard UNIX pipelines.