7.2.45 NDBM_File - Tied Access to NDBM Files

use Fcntl; use NDBM_File;  tie(%hash, NDBM_File, 'Op.dbmx', O_RDWR|O_CREAT, 0644); # read/writes of %hash are now read/writes of the file, Op.dmx.pag untie %hash;

See Perl's built-in tie function. Also see under DB_File in this chapter for a description of a closely related module.