How to transfer files from Linux to Android?

Question

linux

When connected via USB, an empty folder opens, without write permissions.
How to transfer files conveniently?
Ubuntu 16.04, Android 6

Answer 1

I hope you did not forget to lower the curtain and select MTP mode or file transfer there

Answer 2

ES File Manager, in it you raise an FTP server and connect from the Ubuntu file manager. As an option. In general, it would be nice to figure out why there is an empty folder and, moreover, why there are no write rights?