Forouzan, Bechrouz A. Gilberg, Richard F. <br/><br/>
Unix and shell programming : a textbook 

 - New Delhi  Thomson and Sons  2003 
<br/><br/><label>ISBN: </label>9788131503256 
<br/><br/><label>Dewey Class. No.: </label>001.6424UNI FOR;46