view wisdom/block device @ 11069:d9a33f53a8d6

<oerjan> slwd tip//s,\x03 if,\x0f if,
author HackBot
date Sun, 02 Jul 2017 03:10:51 +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.