Test Internet Speed in Command Line

Sometimes the Internet is sluggish and you need to find out if your connection is the culprit. The usual routine to find out the connection speed is the following. First, switch to your browser. Then type out the address of one of the speed testing sites. Finally, navigate through, usually bloated and annoying, GUI. For those who cannot be bothered to do that (and are on *nix system), I have a simple trick to test internet speed in command line. You can just create an alias called speedtest. If you use bash, then running this command will do:

$ echo "alias speedtest='wget https://cachefly.cachefly.net/100mb.test -O /dev/null'" >> .bash_aliases

However, my personal favorite is fish (the shell, not the animal). In fish, you can make custom function in ~/.config/fish/functions/speedtest.fish. The code is below:

function speedtest --description "Test the network speed"
  if test "$argv" = "10"
    wget -O /dev/null https://cachefly.cachefly.net/10mb.test
  else
    wget -O /dev/null https://cachefly.cachefly.net/100mb.test
  end
end

In order to measure your connection speed, just type speedtest in the command line:

$ speedtest 100mb.test
100%[=====================================>] 100.00M 3.56MB/s Time 25s

Wget and bash are usually installed by default, so you should have no trouble running the alias. As for slower connections, use 10mb.test instead of 100mb.test. You can find more useful tricks in the command-line category. Also check my Gitlab page.