Creates a subprocess of the current process. The context of the
   subprocess is copied from the current process. You can use the
   SPAWN command to leave SYSMAN temporarily, perform other tasks
   (such as displaying a directory listing or printing a file), and
   return to SYSMAN.

   Note that SPAWN performs actions on the local node only. If you
   want to execute DCL commands or command procedures throughout your
   environment, use the DO command.

   Requires TMPMBX or PRMMBX user privilege. The SPAWN command does
   not manage terminal characteristics. The SPAWN and ATTACH commands
   cannot be used if your terminal has an associated mailbox.

   Format

     SPAWN  [command-string]

Additional information available:

ParameterQualifiersExample

command-string
   Specifies a command string of fewer than 132 characters that you
   want executed in the context of the created subprocess. When
   the command completes execution, the subprocess terminates and
   control returns to the parent process. If both a command string
   and the /INPUT qualifier are specified, the specified command
   string executes before additional commands are obtained from the
   /INPUT qualifier.

Additional information available:

/INPUT/LOGICAL_NAMES/OUTPUT/PROCESS/SYMBOLS/WAIT

      /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.

      /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.

      /OUTPUT=filespec

   Identifies the output file to which the results of the operation
   are written. You should 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.

      /PROCESS=subprocess-name

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

      /SYMBOLS (default)
      /NOSYMBOLS

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

      /WAIT
      /NOWAIT

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

   SYSMAN> SPAWN DIR SYSTARTUP_V5.*

   Directory SYS$COMMON:[SYSMGR]

   SYSTARTUP_V5.COM;1  SYSTARTUP_V5.TEMPLATE;1

   Total of 2 files.
   SYSMAN>

     The SPAWN command in this example allows you to view a
     directory listing of some files in the SYS$MANAGER directory.
     After the DIRECTORY command executes, control returns to the
     parent process.

   SYSMAN> SPAWN
   $ EDIT SYSTARTUP_V5.COM
      .
      .
      .
   $ LOGOUT
   Process SYSTEM_1 logged out at 28-JUN-1990 10:05:17.24
   SYSMAN>

     This example shows how you can use the SPAWN command to leave
     SYSMAN and edit a file. The LOGOUT command returns you to
     SYSMAN.

   SYSMAN> SPAWN /NOLOGICAL_NAMES SET HOST
   _Node: DUNBAR
      .
      .
      .
   $ LOGOUT

   %REM-S-END, control returned to node _NEWT::

   SPAWN>

     The example shows how you can use the SPAWN command to create
     a subprocess in which you can SET HOST. When you want to leave
     node DUNBAR, enter the LOGOUT command. The /NOLOGICAL_NAMES
     qualifier prevents the logical names of the parent process from
     being copied to the subprocess.