Allows Perl programs to make use of the facilities provided by the GNU gdbm library. Most of the libgdbm.a functions are available as methods of the GDBM_File interface. (See the gdbm(3) manpage and the description of DB_File in this chapter.) The following is an example of the use of GDBM_File:

use GDBM_File;

tie %hash, "GDBM_File", $filename, &GDBM_WRCREAT, 0644);
# Read/writes of %hash are now read/writes of $filename
untie %hash;