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<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.
author | HackBot |
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date | Fri, 17 Jun 2016 08:35:50 +0000 |
parents | f85ea896b7bc |
children |
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#! /usr/bin/env perl ($n,$e)=split /\s+/, join(" ",@ARGV); $n=~s/ *$//; $c="ls -r /var/irclogs/_esoteric/????-??-??.txt"; $c.=" | head -n 30" unless $e eq "ever"; @f=split /\s+/, `$c`; for $f (@f) { open F,"<$f"; @l=grep(/^..:..:..: <$n>/i,<F>); close F; if (@l) { $b=$f; $b=~s#.*/(.*?).txt#$1#; print "$b $l[-1]"; exit 1; } } print "not lately; try `seen $n ever";