bpowerd is a daemon and makes proper use of the system log for error checking. It uses init's powerstatus calls to do it's dirty work, instead of calling shutdown itself. bpowerd is easy to compile and configure, using GNU's autoconf and providing explicit instructions for testing and installation. bpowerd was created using specs provided from the manufacturer, as opposed to reverse-engineering.
bttvgrab is a program for grabbing video sequences using a bt848-based frame grabber card (e.g. Hauppauge WinTV, Miro PCTV...). The goal of bttvgrab is to provide high-quality grabbing suitable for video recording. Currently, this is accomplished by trying hard not to leave out a single frame, and to catch temproary delays by buffering several frames. In the future, synchronized sound will be part of it. Then you can create mpeg movies using mpeg2enc, the output files will be prepared for that, so that the conversion can be done by a simple shell script.
Buildkernel is an intelligent shell script that automates the task of building a Linux kernel. For beginning users, it handles the process from beginning to end, prompting the user when they have to do something. Advanced users can use it to build multiple kernels with little effort. Buildkernel will download kernel and pcmcia source, remove unnecessary code, create symlinks, automatically patch the kernel, build the kernel, modules, and pcmcia modules (nicely), and install them to hard disk or floppy, running LILO as necessary.
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.