The Disk File Optimizer SPAWN command creates a subprocess
    and executes a DCL command in the subprocess, or transfers
    terminal control to the subprocess if no command is supplied.

    Format

      DEFRAGMENT SPAWN  [ command ]

1  –  Parameters

 command

    This is a DCL command string of less than 132 characters that
    is to be executed in the context of the created subprocess. When
    the command completes execution, the subprocess terminates and
    control returns to the parent process. A command is optional. If
    no command is supplied, control passes to DCL.

2  –  Restrictions

    None.

3  –  Qualifiers

    None.

4  –  Examples

    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.