From: Doug Gwyn (VLD/VMB) <gwyn at brl-vld> "The UNIX Programming Environment" by Brian W. Kernighan & Rob Pike (1984, Prentice-Hall, Inc., Englewood Cliffs, NJ 07632) ISBN 0-13-937699-2 ISBN 0-13-937681-X {PBK} Library of Congress Catalog Card # 83-62851