How to write zeroes to your harddisk
mount
sudo dd if=/dev/zero of=/dev/sdd
ps -ef | grep dd
while true;
do
sudo kill -USR1 14865;
sleep 10;
done
sudo dd if=/dev/zero of=/dev/sdd
ps -ef | grep dd
while true;
do
sudo kill -USR1 14865;
sleep 10;
done
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