Unix shell programming. 
By Yashvant P Kanetkar. 
 - 1st. 
 - New Delhi.:  BPB publications.,  2008. 
 - xv, 486 p.:  ill.;6 cm. 
<br/><br/><label>ISBN: </label>81-7029-753-2 
<br/><br/><label>Subjects--Index Terms: </label>Computer science. Unix shell programming. 
<br/><br/><label>Dewey Class. No.: </label>005