In a message dated 2/19/2006 11:31:34 AM US Mountain Standard Time,
dwchandler@stilyagin.com writes:
>These things won't be any use to you as a user. As a developer, sys
>admin, etc., it can be handy to have a device give you an endless stream
>of data. For network there's the chargen service.
They're also very useful for political parties. Where else needs an endless
stream of zeros more?
Seriously, it can be useful to create a "empty file" of a given size.
dd if=/dev/zero of=filename bs=1 count=size.
or to wipe out all data on something... not really a secure delete, but if
you want to hose all the logical information, like if you have a completely
mangled partition table
dd if=/dev/zero of=/dev/hdb
might work
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