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Old 2020-05-18, 16:05   #34
M344587487
 
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"Composite as Heck"
Oct 2017

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# in a script is a comment. # instead of $ in a terminal window at the prompt indicates that the terminal is opened as root instead of as a user. /dev contains special files mainly for interacting with devices (in Linux "everything is a file"). /dev/sda is your hard drive represented as a single file called a block device. In the example dd simply copies the block device representation of your hard drive to an actual file.
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