git
git --version
touch index.html
git init
git config --global user.name 'sam_wang'
git config --global user.email 'sam_wang10@foxmail.com'
git add index.html
git add *.html
git add .
git rm --cached index.html
git status
git commit -m 'change comment'
git branch mybranch
git checkout mybranch
git merge mybranch
git remote add origin https://github.com/.....git
git push -u origin master
https://www.youtube.com/watch?v=SWYqp7iY_Tc