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- Xref: sparky comp.unix.questions:15202 comp.unix.misc:4843 comp.unix.admin:6916
- Path: sparky!uunet!pipex!bnr.co.uk!uknet!mcsun!sun4nl!meycc1!arjanb
- From: arjanb@cc.mey.nl (Arjan de Bruin#124)
- Newsgroups: comp.unix.questions,comp.unix.misc,comp.unix.admin
- Subject: Re: Dumb Question...
- Message-ID: <C0FJ07.I1r@cc.mey.nl>
- Date: 6 Jan 93 11:09:43 GMT
- References: <C0EsA1.3u2@ncifcrf.gov>
- Organization: Decentrale Support
- Lines: 25
-
- In article <C0EsA1.3u2@ncifcrf.gov> digennar@fcs280s.ncifcrf.gov (Frank S. DiGennaro) writes:
- > This might seem a simple question, but here goes... does UNIX have an 'unerase'
- >command similar to DOS?
- >
- >
- >Frank DiGennaro
- >National Cancer Institute
- >Frederick, Md.
- >digennar@fcs280s.ncifcrf.gov
-
- No Frank.
- I suppose you would like to 'unerase' a recently deleted file. Well
- disk blocks that come free when a file is deleted come available in the free
- list. This Free list is a LIFO , last in first out. So even if you could manage
- to figure out which disk blocks did belong to the deleted file you can almost
- be sure that at least one of that blocks is in use or has been in use by some
- other file by that time. So this answers your question and also tells you the
- WHY.
-
- Arjan.
- --
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