1    /INPUT

       /INPUT=filespec

    Specifies an input file containing one or more DCL command
    strings that you want executed by the spawned subprocess. If you
    specify a command string along with an input file, the command
    string gets processed before the commands in the input file. When
    processing is complete, the subprocess terminates.

2    /LOGICAL_NAMES

       /LOGICAL_NAMES (default)
       /NOLOGICAL_NAMES

    Specifies that the logical names of the parent process are copied
    to the subprocess. When you do not want the subprocess to use the
    logical names of the parent process, enter the /NOLOGICAL_NAMES
    qualifier.

3    /OUTPUT

       /OUTPUT=filespec

    Identifies the output file to which the results of the operation
    are written. Specify an output other than SYS$OUTPUT whenever
    you use the /NOWAIT qualifier. This prevents output from being
    displayed while you are specifying new commands. If you omit the
    /OUTPUT qualifier, output gets written to the current SYS$OUTPUT
    device.

4    /PROCESS

       /PROCESS=subprocess-name

    Specifies the name of the subprocess that you want to create. The
    default subprocess name is in the format USERNAME_n.

5    /SYMBOLS

       /SYMBOLS (default)
       /NOSYMBOLS

    Determines whether the system passes DCL global and local symbols
    to the subprocess.

6    /WAIT

       /WAIT (default)
       /NOWAIT

    Controls whether the system waits until the subprocess completes
    before you can specify more commands. The /NOWAIT qualifier
    enables you to specify new commands while the specified
    subprocess is running. If you specify the /NOWAIT qualifier,
    use the /OUTPUT qualifier to direct the output to a file instead
    of displaying it on the screen. Doing this prevents your terminal
    from being used by more than one process simultaneously.