Sumitabha Das <br/><br/>
Unix concepts and applications 

 - 4th ed. 
 - Chennai  McGraw Hill  2018 
 - xxi, 671p.  24x18cm. 
<br/><br/><label>ISBN: </label>9780070635463  799 
<br/><br/><label>Dewey Class. No.: </label>1.6425  / DAS/UNI