a2b invokes conversion tools in sequence to convert files from one type to another, possibly performing some extra processing along the way. Itis a wrapper for many programs like gif2png, latex2html, netpbm, mencoder, ffmpeg, oggenc, etc., that can convert content from one type to another. It can covert text, documents, images, audio, and video and more. Some examples: a2b test.mp3 test.ogg; mencoder_opts="-ss 60 -endpos 10" a2b video.avi clip.flv; a2b -g=subtitles dvd://8 movie.sub; a2b -q http://sam.nipl.net/ sam.aac. That last example downloads the author's Web page, converts it to text with lynx -dump, speaks the text with flite or espeak, and converts the audio file to AAC with faac.
cpShuffleSature randomly copies files. It is designed for copying music, pictures, or films onto portable hardware devices which serve as a filesystem (such as I-Bead, iPod, MuVo, Archos, or others). The source subdirectories are replicated on the target and many options are provided (parts of the original directory names filtering, a given amount of available space on the target filesystem preservation, copying of whole directories, size of each target directory limits, etc.). A history file tracks the activity to reduce over- and under-copying of any file.
vobwalker walks through a .VOB file containing DVD video and extracts lists of VOBUs to a set of chapter files. Each file begins with a VOBU that has no predecessor (i.e., does not point at a preceding VOBU) and contains the list of VOBUs found by following the successor pointers along the list. Although it does not adjust the pointers in the VOBUs (but merely copies them from one file to another), the created chapter files are suitable for use by a program such as dvdauthor that expects to be responsible for filling in the VOBUs.
Fetchgals is a Web spider that locates and optionally downloads free pictures and movies from the internet. It comes with an extensive list of Web sites that are visited to locate thumbnail galleries, and the pictures or movies from these galleries can then be downloaded or linked to from local HTML pages. The list of downloaded galleries is kept so that downloads can be resumed after interruption and so that nothing is ever downloaded twice. Disk space is monitored to avoid overruns.