Mercurial > repo
view wisdom/block device @ 9202:89cecf8798e4
<oerjan> slwd certainty//s/at least/we have certainty that/
author | HackBot |
---|---|
date | Sun, 09 Oct 2016 01:11:25 +0000 |
parents | 272663b31668 |
children |
line wrap: on
line source
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.