it means print each value for the hash referenced at $data{$name} (which would look like this in a data dump (data{APRL} => 7.1963). $_ is a special variable which references the current element. This is the same thing

foreach my $line (@{$data{$name}}) {
    #do something
}

[download]


Where $line is the same thing as $_, more than 1 way to skin a cat. So it's say print out the hash value of the specified key and also print a new line with it so everything won't be bunched up on a single line. Hope that makes sense.

In reply to Re^3: Using a Hash Variable in an If Statement by edimusrex
in thread Using a Hash Variable in an If Statement by Bama_Perl

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