open the sources.list file sudo nano /etc/apt/sources.list …add the following lines to the end of the file: deb https://download.webmin.com/download/repository sarge contrib deb https://webmin.mirror.somersettechsolutions.co.uk/repository sarge contrib…
wget -O speedtest-cli https://raw.github.com/sivel/speedtest-cli/master/speedtest_cli.py chmod +x speedtest-cli ./speedtest-cli