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<oerjan> learn This is something shachaf likes to talk about. We\'re often unsure what this is, though.
author HackBot
date Sat, 09 Dec 2017 11:43:01 +0000
parents 272663b31668
children
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Block devices are a concession made in Unix to make raw hard disks and magnetic tape have a similar interface to regular files and terminals. Since magnetic tapes can't write individual bytes, only entire blocks, the interface isn't exactly the same, thus the dreaded dd obs= option was born.