leave command

    (A) Function
        Terminating a current script and returning to a script 
        before the issue of the listen/eval commands. 

    (B) Format

        leave  [ <status> ]

    (C) Parameter
       <status>
           This is an integer to show a status when a script ends. 
           In the current version, this parameter is ignored. 

    (D) Notes
        If the end of a script (file： EOF, character string: NUL code) 
        is detected, the leave command is automatically issued. 
        The leave command can be used only to make all the remaining 
        scripts into comments. If this command is input into the stdin 
        and then is executed, you can exit from SECONDS. 

    (E) Related items
        eval command
        listen command