sudo apt-get install git git config --global user.name "Your Name" git config --global user.email "your email"
ssh-keygen -t rsa -C "youremail@example.com"
ssh-add ~/.ssh/id_rsa
git remote add origin git@github.com:michaelliao/learngit.git
git push -u origin master
git push origin master
git branch -a git branch git branch test
git checkout test git branch -d test
git branch -r -d origin/branch-name