The RDOINI file is a startup file for RDO. You can include RDO
    statements in this file to set up the characteristics of your
    terminal session, set the default data dictionary directory,
    invoke databases, and perform other frequently used operations.
    If you define the logical name RDOINI to point to a centralized
    initialization file, RDO uses this file as a startup file.
    Otherwise, RDO looks for a file called RDOINI.RDO in the current
    default directory.

    $ TYPE STARTUP.RDO
    INVOKE DATABASE PERS = PATHNAME 'PERSONNEL'
    SHOW DATABASES
    $ DEFINE RDOINI "DISK2:[OBRIEN]STARTUP.RDO"
    $ RDO
    Database with db_handle PERS in path 'DISK1:[DICTIONARY]CORP.PERSONNEL;1'
    RDO>