while (my ($name, $hash) = each %nfs) {
    for my $devloc (ref $hash->{'%filer_device'} ? keys %{$hash->{'%fi
+ler_device'}} : '%filer_device') { # hack here
        my $device = (ref $hash->{'%filer_device'} ? $hash->{'%filer_d
+evice'} : $hash)->{$devloc}; # and here
        my $volume = ref $hash->{'%filer_volume'} ? $hash->{'%filer_vo
+lume'}{$devloc} : $hash->{'%filer_volume'};
        print "\@dev $name $device $volume $hash->{'%export_name'}\n";
    }
}

[download]
This code uses a small hack providing itself a fake hash and hash key when '%filer_device' value is not a hash reference. The downside of it is lack of data structure checking, so the real solution should be more verbose (and probably use Params::Validate, Data::Validator, Data::Diver or Data::DPath).

In reply to Re: How to check that keys in two hashes match and get the corresponding values by aitap
in thread How to check that keys in two hashes match and get the corresponding values by NewLondonPerl1

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