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<shachaf> slwd rules of wisdom//s#:#: #; s#$# #; s#U#u#; s#all wisdom entries#they#
author | HackBot |
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date | Mon, 12 Dec 2016 02:28:36 +0000 |
parents | 272663b31668 |
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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.