Re: file scrubbing
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On Fri, 9 Aug 2002 15:39, Ron Johnson wrote:
> On Fri, 2002-08-09 at 00:14, Geoff Crompton wrote:
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> > Does anyone know of any file scrubbing tools? Something that will zero
> > out the contents of a file, or overwrite it with random data? Previously
> > I have done things find the file size, and use
> > $dd if=/dev/zero of=targfile bs=1 count=filesize
> > But I am not certain that this overwrites the actual inode locations on
> > disk, and it is clumsy to work out the file size before hand.
> > Something like the following would be great:
> >
> > $ scrub -r -R -d dir
> >
> > Where the -r would recurse, the -R would randomize it (instead of
> > filling with zeros) and the -d would sync and then rm the file.
>
> What kind of filesystem will it be on? As has been discussed many
> times here, journaling filesystems bollix up scrubbers.
I was probably thinking of ext3, simply because that is what I use
everywhere. Are their scrubbers for non-journaling filesystems?
Cheers
Geoff
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