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* LT presentation for Kernel/VM@tkb
[lab.git]
/
misc
/
domains.pl
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#! /usr/bin/perl -w
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use strict;
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use warnings;
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my $domain = '\@(([-a-z0-9]+\.)*[a-z]+)';
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my $file = shift @ARGV;
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open FILE, $file;
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my $domains = {};
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while (my $line = <FILE>) {
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if ($line =~ /$domain/oi) {
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$domains->{$1}++;
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}
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}
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foreach my $key (keys %$domains) {
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print $key, "\t", $domains->{$key}, "\n";
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}