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view wisdom/block device @ 9302:ee570e73c8d9
<boily> ` sed -i \'s/of in/in/\' wisdom/spork
author | HackBot |
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date | Mon, 17 Oct 2016 00:03:56 +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.