Mailing the story:
The dd command on Linux terminal.
dd seem an unfriendly command, but if you start to use it, you’ll see that it’s a powerful command able to do many different things, backup a partition, CD or USB stick for example or do some simple tests on the speed of your disks or your CPU. The man page says: dd is an application that will “convert and copy a file” But let’s see some trick with it.