SHELL                    Execute DOS Command

 SHELL [commandstr]

    Loads a secondary copy of COMMAND.COM and, optionally, executes an
    .EXE, .COM, or .BAT program, or an internal DOS command.

  commandstr    A string expression. If omitted, SHELL leaves the user at
                the DOS command prompt. To return to the Turbo Basic
                program, the user types EXIT.

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      Notes:    If the SHELLed program is a batch file, its last statement
                must be EXIT.

                Parameters may be passed to the SHELLed program in the
                usual DOS fashion. Any words in commandstr that are
                separated from the program name by one or more spaces are
                considered parameters for the SHELLed program.

                It is not advisable to run TSR programs via SHELL. They
                may cause a crash on return to Turbo Basic.

                After the specified DOS command or program terminates,
                control is returned to the line following the SHELL
                statement.