To capture screenshots of a website we would need to use the screenshot applications provided in Linux, or alternatively download one of the many web browser extensions available.
One package that I stumbled across called cutycapt allows you to grab screenshots of websites using the terminal, not only that but it captures the whole website from top to bottom, which is pretty neat.
To install cutycapt open your terminal and enter the following command
sudo apt-get install cutycapt
Once installed let's grab our first screenshot of mycomputertips in .jpg format, and save this to our Pictures folder using the following command. Replace username with your own username