Sobell, Mark G. A practical guide to Linux commands, editors, and shell programming / Mark G. Sobell. - 3rd ed. - Upper Saddle River, NJ : Prentice Hall, c2013. - l, 1154 p. : ill. ; 23 cm. Includes bibliographical references and indexes. ISBN: 9780133085044 013308504X LCCN: 2012028015 Subjects--Topical Terms: Operating systems (Computers) Dewey Class. No.: 005.4/32