Install Arduino IDE 1.8.9 on Ubuntu 18.10

This video shows how to download and install Install Arduino IDE 1.8.9 on Ubuntu 18.10 (on VirtualBox/Windows 10)
Install Arduino IDE 1.8.9 on Ubuntu 18.10 and set permission for serial port https://arduino-er.blogspot.com/2019/04/install-arduino-ide-189-on-ubuntu-1810.html

update:
Install Arduino IDE 1.8.13 on Ubuntu 20.04 https://www.youtube.com/watch?vZ8aYYSk4i9o

Please take the opportunity to connect and share this video with your friends and family if you find it useful.