This article describes Linux dd Command Usage Create Restore Clone Image Disk

Just like Windows, iOS, and Mac OS, Linux is an operating system. In fact, one of the most popular platforms on the planet, Android, is powered by the Linux operating system. An operating system is software that manages all of the hardware resources associated with your desktop or laptop. To put it simply, the operating system manages the communication between your software and your hardware. Without the operating system (OS), the software wouldn?t function.

Linux is the best-known and most-used open source operating system. As an operating system, Linux is software that sits underneath all of the other software on a computer, receiving requests from those programs and relaying these requests to the computer’s hardware.

For the purposes of this page, we use the term “Linux” to refer to the Linux kernel, but also the set of programs, tools, and services that are typically bundled together with the Linux kernel to provide all of the necessary components of a fully functional operating system. Some people, particularly members of the Free Software Foundation, refer to this collection as GNU/Linux, because many of the tools included are GNU components. However, not all Linux installations use GNU components as a part of their operating system. Android, for example, uses a Linux kernel but relies very little on GNU tools.

Every version of the Linux operating system manages hardware resources, launches and handles applications, and provides some form of user interface. The enormous development community and wide range of distributions means that a Linux version is available for almost any task, and Linux has penetrated many areas of computing.

The dd command stands for “data duplicator” and used for copying and converting data. It is very powerful low level utility of Linux.

The Linux dd command is one of the most powerful utility which can be used in a variety of ways. This tool is mainly used for copying and converting data, hence it stands for data duplicator. This tool can be used for:
Backing up and restoring an entire hard drive or a partition.
Creating virtual filesystem and backup images of CD or DVDs called ISO files
Copy regions of raw device files like backing up MBR (master boot record).
Converting data formats like ASCII to EBCDIC.
Converting lowercase to uppercase and vice versa.

Now you can find some examples in this video.

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