Overview The dd command is a useful tool for copying one entire hard drive to another. This can be helpful if you want to move your entire computer system to a new hard drive. The trick is making sure you know which drive you are copying from and which drive you are copying to. There is no recovering your data if you accidentally copy an empty drive to your system drive. It will overwrite all your information. The Process Here are some commands and tools that you will want to use: df -h (this will show you your drives and the disk free space) dd if=/dev/sdb of=/dev/sdc (important: sdb and sdc are examples you will need to know what your specific drives are ) We can also use dd to create image backup of a hard disk Instead of taking a backup of the hard disk, you can create an image file of the hard disk and save it in other storage devices.There are many advantages to backing up your data to a disk image, one being the ease of use. This method is typi...