[CentOS] script to make webpage snapshot

I have some some angularjs sites that I test with protractor and a
chrome webdriver. I read in the docs at some point that I could take
and save screenshots if I wanted. You may be able to write a simple
nodejs script to kick of the webdriver and take the screenhsot.  Or
someone may have already writen one :-)

https://www.seleniumeasy.com/selenium-tutorials/take-screenshot-with-selenium-webdriver