I am trying to use tie as a frontend for a DBM file. I am using the SDBM module which ships with Perl. This code or something close should work but I seem to be spinning my wheels. The example below is based on what it says in the Advanced Perl Programming book. Any insights would be appreciated. Cheers! 
use Fcntl;
use SDBM_File;
tie (%h, 'SDBM_File', 'data.dbm', O_RDWR|O_CREAT, 0640)
     || die $!;          # This opens the data file
$h(a) = 20;              # This writes the file
while (($k, $v) = %h) {  # Iterates over all keys
    print "$k,$v\n"
}
untie %h;                # Flush and close the dbm file

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In reply to Tying Hash for DBM by JSchmitz

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