OT: Can Reformatting A Hard Drive To ext3 Destroy All the Data On It?

[Sam Varshavchik]

Robert L Cochran writes:

> I have a hard drive that I need to destroy the data on. What is the most 
> dependable way to do this? Can reformatting the drive as ext3 or ext4 or 
> some other filesystem effectively destroy the existing data?
> 
> Is there free software that can write zeroes or some form of nonsense to 
> every storage location?

dd if=/dev/zero of=/dev/youbettergetthisright bs=1M

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