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Dd is a vary powerful and useful utility available on Unix and Unix-like operating systems. As stated in its manual, its purpose is to convert and copy files. On Unix and Unix-like operating systems like Linux, almost everything is treated as a file, even block devices: this makes dd useful, among the other things, to clone disks or wipe data. The dd utility is available out of the box even in the most minimal installation of all distributions. In this tutorial we will see how to use it and how we can modify its behavior by using some of the most commonly used options to make your Linux system administration job easier.
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