I am working on a site with a server running Git. I am using Git for deployment (not GitHub). This was set up prior to my involvement using a hook method, and I referred to this
https://raw.githubusercontent.com/[USER-NAME]/[REPOSITORY-NAME]/[BRANCH-NAME]/[FILE-PATH]
Ex. https://raw.githubusercontent.com/vipinbihari/apana-result/master/index.php
Through this you would get the contents of an individual file as a row text. You can download that text with wget.
Ex. https://raw.githubusercontent.com/vipinbihari/apana-result/master/index.php