Whether you received your Darwin package by electronic mail, ftp, or surface mail, detailed instructions for either you or your system administrator are included in this package for decompressing and installing the necessary files. Appendix and the COMPUTATIONAL BIOCHEMISTRY RESEARCH GROUP WWW site (see side box below) provide additional information if you should encounter difficulties.
Different operating systems will require different commands for starting Darwin. In the UNIX operating system , users would typically be required to type
% darwinat the shell prompt. The Darwin prompt is by symbol (>) and the cursor is placed immediately to the right of it. We are now ready to begin interacting with Darwin.