Das, S <br/><br/>
Unix concepts and applications 4th ed. 

 - 4th edition 
 - New Delhi :  Tata Mcgraw Hill,  2012. 
 - 671 
<br/><br/><label>ISBN: </label>978-0-07-063546-3 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer EngineeringInformation Technology
<br/><br/><label>Dewey Class. No.: </label>005.422  / DAS