Mercurial > repo
view wisdom/block device @ 9990:4139a6b6fb94
<hppavilion[0]> ` sed -i "s/ERsi/ERlis/" bin/grwfi
author | HackBot |
---|---|
date | Fri, 16 Dec 2016 19:48:09 +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.