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- Path: sparky!uunet!dtix!darwin.sura.net!jvnc.net!nuscc!ntuix!eoahmad
- From: eoahmad@ntuix.ntu.ac.sg (Othman Ahmad)
- Newsgroups: comp.unix.bsd
- Subject: Re: backup w/ compression for UN*X?
- Message-ID: <1992Sep4.085828.10853@ntuix.ntu.ac.sg>
- Date: 4 Sep 92 08:58:28 GMT
- References: <1992Sep3.165702.3809@gateway.novell.com>
- Organization: Nanyang Technological University - Singapore
- Lines: 34
- X-Newsreader: Tin 1.1 PL4
-
- terry@thisbe.Eng.Sandy.Novell.COM (Terry Lambert) writes:
- : In article <1992Sep3.015437.15379@msuinfo.cl.msu.edu> paoletti@cps.msu.edu (David R. Paoletti) writes:
- : >Does anyone know of any software for UN*X, 386BSD or otherwise,
- : >that does on-the-fly compression? Thinking of looking into
- : >writing my own, or getting some 386BSD people together to help,
- : >as soon as I get my new machine built with enough HD space to
- : >re-compile 386BSD... This would be really nice for people with
- : >floppies, or even people who want to save on tapes.
- :
- : ctar (LoneStar software, I believe... Hi guys!)
- :
- : Doesn't gnutar support -z (LZW compression)?
- Cannot do multi-volume, at least the 386bsd one. The reason is due to
- the fact that it gnu tar just pipes it through compress, instead of
- incorporating it before the multivolume archiving.
- The trick is to call the compress before the archiving.
- Maybe
-
- tar cvf - | compress | tar cvOMf /dev/rfd0a
-
- "however cO is not a valid option" only "xO"
-
- maybe we can use mkfifo, but I have never managed to make mkfifo work.
-
- mkfifo fifo
- (tar cvzf fifo) | (tar cvMf /dev/rfd9a fifo)
-
- Any ideas?
-
- --
- Othman bin Ahmad, School of EEE,
- Nanyang Technological University, Singapore 2263.
- Internet Email: eoahmad@ntuix.ntu.ac.sg
- Bitnet Email: eoahmad@ntuvax.bitnet
-