Didn't realise security was an issue, however if that was the case a
simple crypt of the file before getting ride of the data would be more
than efficient
--
Guy Taylor
Obsidian Systems
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On Fri, 7 Jan 2000, Ken Yap wrote:
> >> cat /dev/null > /$foo where $foo = file
> >>
> >> its hacky but it works :)
> >
> >or just:
> >
> >> $file
> >
> >the redirect under most shells truncates a file if there's
> >nothing to the left of it.
>
> Actually this may not be as secure as you think. All it probably does is
> set the file length to zero, but the data blocks will still be on disk,
> though liable to be claimed by another file soon. So a trawl through
> the disk might find the blocks. And it seems data recovery techniques
> can drag out data from the disk. However short of your user taking over
> the root account or kidnapping your disk for data recovery...
> --
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