If I have understood your problem then I think the code below can be one of the solution.

As In Perl they say there are more than one ways to do it.

Basically you want some form in which you can store the data to a file then you can collect the data back from the file to a variable. One way can be using Dumper, you can even use Storable.pm

You can store this hash like this in a file

use Data::Dumper;

open(OUT,">/usr/home/hashtree");
print OUT Dumper(\%tree);
close(OUT);
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then whereever u want to retrieve the value back from this file to a variable you can use something like this.

use Data::Dumper;
my $hashtree = do("/usr/home/psivaram/tree") or die $!;

%tree = %{$tree};
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