Forouzan, Behrouz A. , UNIX and Shell programming : a textbook / Behrouz A. Forouzan, Richard F. Gilberg. - xix, 875 pages : illustrations ; 23 cm. ISBN: 0534391559 Subjects--Topical Terms: UNIX (Computer file).UNIX Shells.Operating systems (Computers). LC Class. No.: QA76.76.O63 / .F67 2003