view wisdom/block device @ 9273:4d88066c879e

<shachaf> ` mkx \'bin/Binary//echo "$@"\'; mkx \'bin/binary//Binary file bin/binary matches\'
author HackBot
date Thu, 13 Oct 2016 22:56:42 +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.