DB

   DB is a utility with which to create and manipulate an alias
   database. Alias databases can either be a personal alias database
   (pointed at by the logical PMDF_PERSONAL_ALIAS_DATABASE) or a
   system alias database. As the format of PMDF alias database is
   used for other PMDF databases (e.g., PMDF_DOMAIN_DATABASE), DB
   can also be used to manipulate non-alias databases.

   DB is invoked by the command

   $ PMDF DB

   and can be exited by either typing Control-Z or issuing the quit-
   program command.
 

Additional information available:

Aliases         Public_Aliases  Mailing_Lists   Advanced_Mailing_Lists
Subaddresses    Operation_of_DB Commands