Resources:
git config --global user.name "Your Name"
git config --global user.email happypeter1983@gmail.com
mkdir first-proj
cd first-proj
git init
touch README
git add README
git commit -m 'first commit'
git remote add origin git@github.com:lovelypeter/first-proj.git
git push -u origin master
cat ~/.gitconfig
mv .ssh ssh.bak
ssh-keygen