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annotate wisdom/block device @ 10000:20ae0b28393e

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<izabera> ` echo \'sed "s/./& /g;s/.*/20k&p/" <<< "$*" | dc\' > bin/unaryrpn; chmod +x bin/unaryrpm; unaryrpm 111+/
author HackBot
date Tue, 20 Dec 2016 23:17:40 +0000
parents 272663b31668
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8509
272663b31668 <b_jonas> slashlearn block device/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.
HackBot
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1 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.