Secure Erase for PCs?

[proff at suburbia.net]

> Dale Thorn <dthorn at gte.net> wrote:
> > It's a hundred times easier to do tools for the IBM PC.  I make
> > utilities for the PC, and it would take no more than ten or fifteen
> > minutes to cook this one up.
> 
> It took me less than ten minutes...
> 
> > But nobody answered my question:  Is there a shortcut way to do the
> > wipe, say, thirty times?  Ordinarily, I'd run the program thirty
> > times, which would consist of a data write followed by a flush,
> > which would take 30x amount of time.
> 
> Try this in Linux...
> 
> #!/bin/csh
> set n=1
> loop:
> cat /dev/urandom >/tmp/fill
+ sync;df >/dev/null
> rm /tmp/fill
> @ n = $n + 1
> if ( $n < 30 ) then
>   goto loop
> endif
> 

and it just might work.