GDBM.new(filename, mode = 0666, flags = nil)
Class Public methods
Creates a new GDBM instance by opening a gdbm file
named filename. If the file does not exist, a new file with file
mode mode will be created. flags may be one of the
following:
READER - open as a reader
WRITER - open as a writer
WRCREAT - open as a writer; if the database does not
exist, create a new one
NEWDB - open as a writer; overwrite any existing
databases
The values WRITER, WRCREAT and
NEWDB ma