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      my $success = run 
          [$echo => -e => "\'" => join("\n", @iptout) => "\'"], 
          '|', [$ipt_cmd => 'iptables-restore'], 
          '>', \my $cmdout, '2>&1';

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      my $success = run 
          [$ipt_cmd => 'iptables-restore'], 
          '>', \my $cmdout, '2>&1',
          '<<<', '${', [$echo => -e => "\'" => join("\n", @iptout) => 
+"\'"], '}';