def get(self, key, filepath):
        """Get configuration parameter.

        Reads 'key' configuration parameter from the configuration file given
        in 'filepath'. Configuration parameter in 'key' must follow the schema
        <section>.<option> .

        :param key: key to get
        :param filepath: configuration file
        """
        if not filepath:
            raise RuntimeError("Configuration file not given")

        if not self.__check_config_key(key):
            raise RuntimeError("%s parameter does not exists" % key)

        if not os.path.isfile(filepath):
            raise RuntimeError("%s config file does not exist" % filepath)

        section, option = key.split('.')

        config = configparser.SafeConfigParser()
        config.read(filepath)

        try:
            option = config.get(section, option)
            self.display('config.tmpl', key=key, option=option)
        except (configparser.NoSectionError, configparser.NoOptionError):
            pass

        return CMD_SUCCESS
Get configuration parameter.

        Reads 'key' configuration parameter from the configuration file given
        in 'filepath'. Configuration parameter in 'key' must follow the schema
        <section>.<option> .

        :param key: key to get
        :param filepath: configuration file