I have a project on github that I have been working on before. However, I wiped out my computer and I am wondering which git command should I invoke under my username to checko
Git clone is the command you're looking for:
git clone git@github.com:username/repo.git
Update: And this is the official guide: https://help.github.com/articles/fork-a-repo
Take a look at: https://help.github.com/
It has really useful content