books.google.de - This book describes the design and implementation of the BSD operating system--previously known as the Berkeley version of UNIX. Today, BSD is found in nearly every variant of UNIX, and is widely used for Internet services and firewalls, timesharing, and multiprocessing systems. Readers involved in technical...http://books.google.de/books/about/The_Design_and_Implementation_of_the_4_4.html?hl=de&id=6rjd2ZxE1vYC&q=daemon&utm_source=gb-gplus-shareThe Design and Implementation of the 4.4 BSD Operating System