+/**
+ * @brief tool to access the system config from the CLI
+ *
+ * With this script you can access the system configuration of your node from
+ * the CLI. You can do both, reading current values stored in the database and
+ * set new values to config variables.
+ *
+ * Usage:
+ * If you specify no parameters at the CLI, the script will list all config
+ * variables defined.
+ *
+ * If you specify one parameter, the scipt will list all config variables
+ * defined in this section of the configuration (e.g. "system").
+ *
+ * If you specify two parameters, the scipt will show you the current value
+ * of the named configuration setting. (e.g. "system loglevel")
+ *
+ * If you specify three parameters, the named configuration setting will be
+ * set to the value of the last parameter. (e.g. "system loglevel 0" will
+ * disable logging)
+ **/