Path: utzoo!utgpu!water!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!bloom-beacon!mit-eddie!uw-beaver!ssc-vax!bcsaic!paula From: paula@bcsaic.UUCP (Paul Allen) Newsgroups: comp.sys.zenith.z100 Subject: Re: backup using [pk]arc Message-ID: <5238@bcsaic.UUCP> Date: 5 May 88 19:28:24 GMT References: <8805021419.AA10001@ll-vlsi.arpa> Reply-To: paula@bcsaic.UUCP (Paul Allen) Organization: Boeing Computer Services AI Center, Seattle Lines: 43 In article <8805021419.AA10001@ll-vlsi.arpa> malpass@LL-VLSI.ARPA (Don Malpass) writes: > > Does a disk backup program using arc format exist? It would >have to march recursively through a directory tree, clone the >tree (up to the top branches) on the target disk, and presumably put >all files from a given directory "xyz" into a file called "xyz.arc". Why not use zoo? It understands directories. It generates archives that are portable between *all* systems you might be interested in. It's roughly as fast as pkarc and compresses roughly as small as pkarc. It's been posted to the net at least three times that I've seen. It's FREE. The zoo sources are freely available. Zoo does everything that pkarc or arc do and more. In a posting last year, zoo's author (Rahul Dhesi) offered to send people zoo if they would send him a floppy and a stamped addressed mailer. He also made zoo available via anonymous uucp. You can contact him at uunet!bsu-cs!dhesi or dhesi%bsu-cs@uunet.uu.net. People who are on the arpanet can probably get zoo from simtel. I haven't checked because I snarfed it from Usenet, but I would imagine it's there. A couple notes: To archive directory hierarchies with zoo, you need to feed it a list of pathnames on standard input. My Zenith MSDOS has a 'search' command that can be used to generate this list. I'm thinking about a program that would generate a list of all the files that don't have the archived bit set, and then set the bit. On UNIX, you would use 'find'. PCDOS probably has something similar. Zoo doesn't yet understand multi-floppy archives. If you are writing the archive on a hard disk or NFS partition, this isn't a problem. *BEGIN OPINION* Hey! ZOO IS BETTER THAN ARC! We would all be better off if we started using it! 'Nuff said! *END OPINION* Paul Allen -- ------------------------------------------------------------------------ Paul L. Allen | paula@boeing.com Boeing Advanced Technology Center | ...!uw-beaver!ssc-vax!bcsaic!paula