Mercurial > repo

view wisdom/block device @ 9256:ecde94b992a5

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
<oerjan> mkx bin/hlnp//hg log "$@" | sed \'s/\\(<[^>]*\\)\\([^>]>\\)/\\1\xcc\x88\\2/g\'
author HackBot
date Thu, 13 Oct 2016 03:51:25 +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.