My first how to video about how to flash a Sonoff S20 on Linux. I have seen so many How To's for Windows, so here is my little contribution.
*Sonoff Tasmota Github Link*
https://github.com/arendst/Sonoff-Tasmota
*Atom.oi Link* (Download Atom .deb file)
https://atom.io/
*Install Atom.oi*
cd ~/Downloads
...
https://www.youtube.com/watch?v=z_6ZP5njiGo