This will convert the line passed into the do_xxx functions into
        an array of arguments and handle the Output Redirection Operator.

def line_to_args(self, line):
        """This will convert the line passed into the do_xxx functions into
        an array of arguments and handle the Output Redirection Operator.
        """
        # Note: using shlex.split causes quoted substrings to stay together.
        args = shlex.split(line)
        self.redirect_filename = ''
        self.redirect_dev = None
        redirect_index = -1
        if '>' in args:
            redirect_index = args.index('>')
        elif '>>' in args:
            redirect_index = args.index('>>')
        if redirect_index >= 0:
            if redirect_index + 1 >= len(args):
                raise ShellError("> requires a filename")
            self.redirect_filename = resolve_path(args[redirect_index + 1])
            rmode = auto(get_mode, os.path.dirname(self.redirect_filename))
            if not mode_isdir(rmode):
                raise ShellError("Unable to redirect to '%s', directory doesn't exist" %
                                 self.redirect_filename)
            if args[redirect_index] == '>':
                self.redirect_mode = 'w'
                if DEBUG:
                    print('Redirecting (write) to', self.redirect_filename)
            else:
                self.redirect_mode = 'a'
                if DEBUG:
                    print('Redirecting (append) to', self.redirect_filename)
            self.redirect_dev, self.redirect_filename = get_dev_and_path(self.redirect_filename)
            try:
                if self.redirect_dev is None:
                    self.stdout = SmartFile(open(self.redirect_filename, self.redirect_mode))
                else:
                    # Redirecting to a remote device. We collect the results locally
                    # and copy them to the remote device at the end of the command.
                    self.stdout = SmartFile(tempfile.TemporaryFile(mode='w+'))
            except OSError as err:
                raise ShellError(err)

            del args[redirect_index + 1]
            del args[redirect_index]
        curr_cmd, _, _ = self.parseline(self.lastcmd)
        parser = self.create_argparser(curr_cmd)
        if parser:
            args = parser.parse_args(args)
        return args