Search:

Try this:



wget https://downloads.arduino.cc/arduino-1.8.13-linux64.tar.xz
wget https://www.pjrc.com/teensy/td_153/TeensyduinoInstall.linux64
wget https://www.pjrc.com/teensy/49-teensy.rules...

Download a fresh copy of Arduino from Arduino's website:

https://www.arduino.cc/en/Main/Software

Extract it. But DO NOT extract it inside of that Arduino folder (which looks like the place you...