Mercurial > repo

view wisdom/block device @ 11914:7e41237f750b draft

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
<b_jonas> `` set -e; slashlearn "spoiler//Don\'t give movie spoilers on channel. If you do, hppavilion may hire a hitman to hunt you down in real life and torture you in refined ways."; forget rogue one
author HackEso <hackeso@esolangs.org>
date Mon, 26 Aug 2019 21:41:15 +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.