From: utzoo!henry Newsgroups: hacknews Title: du(1) interface improved Article-I.D.: utzoo.2734 Posted: Wed Jan 5 21:54:10 1983 Received: Wed Jan 5 21:54:10 1983 Fixed du(1) to use getopt(3) for its option cracking and, as a side effect thereof, to produce much more reasonable messages in the event of usage errors. Problem reported by Laura.