00311nam a2200109Ia 4500008004100000082002500041100003500066245003700101250000900138260004400147300001000191240913s9999||||xx |||||||||||||| ||und||  aGS    005.382  KER/T  aBrian W Kernighan and Rob Pike 4aThe unix programming environment  aNULL  bPrentice Hall of IndiaaNew Delhic1998  a357 p