#!/usr/bin/perl use warnings; use strict; use POSIX; use NDBM_File; use GDBM_File; my (%ndbm_db,%gdbm_db); my $ndbm_file='/tmp/my_old_ndbm_database'; my $gdbm_file='/tmp/my_new_gdbm_database'; tie %ndbm_db, 'NDBM_File',$ndbm_file, O_RDONLY, 0; tie %gdbm_db, 'GDBM_File',$gdbm_file, O_CREAT|O_WRONLY, 0644; %gdbm_db=%ndbm_db; untie %ndbm_db; untie %gdbm_db;