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view wisdom/block device @ 11321:14314c55571e
<FireFly> ` echo "$(cat wisdom/fonts) , FireFly\'s fonts http://xen.firefly.nu/up/fonts/ & https://twitter.com/FireyFly/status/899965577481129984" >/tmp/a && cp /tmp/a wisdom/fonts && cat wisdom/fonts
author | HackBot |
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date | Mon, 15 Jan 2018 22:31:52 +0000 |
parents | 272663b31668 |
children |
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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.