You may be installing LifeLines from a source distribution package or as an executable program already prepared for your UNIX system. The source distribution comes with the readme, build script and make files necessary to build LifeLines. Follow the instructions in the readme file. The executable program will be named llines. llines is the LifeLines program; put it in a directory in your execution path. If you get the program in executable form, follow whatever instructions came with it. The source distribution package also contains documentation and some LifeLines programs.