For courses in Unix Systems Programming, Unix System Administration, and as a supplemental text for courses in Advanced Networks and Systems Programming. This readable and comprehensive text clearly explains Unix programming and structure by addressing the solid fundamentals of Unix and providing different solutions to problems. All ideas and principles are introduced in the context of a practical problem, and excellent use is made of illustrations and listings in the text. Projects are solved by the development of complete programs, which are clearly commented on and integrated with explanations in the text.