Hmm ok,
i see that the installation of Influx aborted with
2019-02-10 19:39:44,865: FireMotD: Error: Template folder doesn't exist. Upgrading from an older version? Please run make again or run the install function "FireMotD -I -v".
i did the workaround according this.
removed and reinstall influx. but still the influx command is unknown…