Speedtest.net is the de facto internet link speed testing tool out there. Some people might argue that it is not accurate, but it’s still the most popular tool of it’s kind out there.
For us geeky individuals that have only the command line (cli) available to us in Linux but still want to test our link speed to the internet, there is a solution. speedtest-cli
To use, do the following (Tested in Ubuntu)
Step 1: Install GIT (git-core)
user@techedemic:~$ sudo apt-get install git-core