From Applied Optics Wiki
To start GIT for the first time
Issue this in the root directory of the project
Adding files to the repo
Note this doesn't protect them yet but just lets GIT know you want to protect them
git add <list of files I want> git commit -m "my notes on the day"
Committing files (ie protecting them)
git add <files I want tracked> git commit -m "more messages"
or to commit all files previous added
git commit -a -m "more messages"