Usepackage is a tool for managing the Unix environment for a multi-tool, multi-platform site. It is designed to simplify login scripts and allow administrators to control users' environments centrally. This tool should be considered primarily designed for sites where users have to deal with a number of different tools, or versions of tools, that are installed in different locations and require environment variables to be set. This is particularly a problem for developers, or anyone who has to manage a large toolset across multiple platforms (e.g. different versions of the Sun JDK which require various environment variables to be set correctly). One or more central configuration files control a number of different "packages" and their associated environment and dependencies for different platforms (this includes the standard PATH, MANPATH, and LD_LIBRARY_PATH variables). A single user command, use, can be invoked to source the appropriate environment information into the users' current shell.
AVInfo is a utility for displaying AVI, MPEG (1 and 2), OGM, MKV, and IFO (DVD) information. It returns the length of a clip, FPS, resolution, codec, audio and video bit rate, number of key frames, sound parameters, the number and type of streams, and the language for audio/subtitles. It then generates a file list with statistics (HTML, plain text, or CSV).
The Heirloom Development Tools provide yacc, lex, m4, make, and SCCS as portable derivatives of the utilities released by Sun as part of OpenSolaris. The OpenSolaris utilities were in turn derived from the original Unix versions, and are assumed be conforming implementations of the POSIX standard.
Hoc, the High Order Calculator, is an interpreted language for floating-point calculations. Its most basic use is as a powerful and convenient calculator, interactively evaluating expressions such as 1+2*sin(0.7). But hoc is no ordinary calculator: It also lets you assign values to variables, define your own functions, and use loops, conditionals, and everything else you'd expect in a programming language.