The following examples show how to SPAWN processes from within
    the Disk File Optimizer utility.

    1.

    DFO> SPAWN
    $

    The SPAWN command creates a subprocess and transfers terminal
    control to the created subprocess.

    2.

    DFO> SPAWN SHOW DEFAULT
       DISK$1:[JONES]
    DFO>

    The SPAWN command creates a subprocess and executes the DCL
    command SHOW DEFAULT in the created subprocess. Control then
    returns to the Disk File Optimizer parent process.