Das, Sumitabha <br/><br/>
Unix Concept and Applications 

 - 4rt 
 - New Delhi  Tata McGraw Hill Education  2009 
 - 671p. 
<br/><br/><label>ISBN: </label>9780070635463 
<br/><br/><label>Dewey Class. No.: </label>005.43  / Das-U