Path: utzoo!utgpu!water!watmath!clyde!cbosgd!ihnp4!ptsfa!ames!hao!oddjob!mimsy!cvl!umd5!brl-adm!cmcl2!husc6!rutgers!bellcore!faline!ulysses!gamma!mibte!edsdrd!rel!bob From: bob@rel.eds.com (Bob Leffler) Newsgroups: news.sysadmin Subject: Re: UUCP map extraction Summary: Supercedes Message-ID: <489@rel.eds.com> Date: 15 Dec 87 13:03:12 GMT References: <158@teletron.UUCP> Organization: Electronic Data Systems, GM Truck & Bus Account Lines: 18 In article <158@teletron.UUCP>, andrew@teletron.UUCP (Andrew Scott) writes: > The "Supercedes:" field in the header replaces an old article with a more > current version. I don't see how that would help with updating maps, as > un-sharing the updates as they come in would overwrite the old files anyway. You are correct in assuming that when you unpack the shar file it will overwrite the previous file in your archives. However, the Supercedes field will eliminate duplicate articles that are stored in your news spool directories. Maps are posted when a one month expiration. Without this entry, it would have been possible to have multiple revisions of the same file online at once. -- Bob Leffler - Electronic Data Systems, GM Truck & Bus Account bob@rel.eds.com or {rutgers, cbosgd!edstb, philabs!fmsrl7}!rel!bob Opinions expressed may not be those of my employer.