to the dd command i believe will let you know how long it has so you can keep an eye on it in the terminal.

On Fri, Jan 25, 2019 at 11:32 PM Samuel Sieb <> wrote:
On 1/25/19 10:58 PM, Jonathan Ryshpan wrote:
> I'll give dd a try; but I don't see offhand why
>     dd if=/dev/urandom of=/dev/sdc bs=1M
> should be quicker than what I'm using now, namely
>     shred -v -n1 /dev/sdc

I don't know how it generates the data to overwrite with.  Does it use a
lot of CPU?  If not, then dd will probably not be faster, you might be
at maximum speed for the drive.  However, shred is intended for files,
not partitions.
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