view wisdom/block device @ 12042:1aa76501f9fe draft

<oerjan> sled bin/@//2s!+.*!+//) { print "$1: "; exec "nur", $_; }!
author HackEso <hackeso@esolangs.org>
date Sat, 16 Nov 2019 04:05:51 +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.