Sadly doesn't work on mint cinamon 19.3, That's a big shame.
how to use it?
It's alright I guess. Just the thing I need to see my bandwidth.
Großartig, viele Auswertungsmöglichkeiten siehe http://wiki.ubuntuusers.de/vnStat
Very accurate current and historical network traffic monitor operated at the command line via Terminal. Needs a lot more help/FAQ notes on how to operate it.
Great live- and long term network traffic monitor (cli)
great application for historical review of traffic