github init

echo 'heihei' > README.md
git init
git add README.md
git commit -m "first commit"
git branch -M master
git remote add origin [e-mail]:mabutou/fff.git
git push -u origin master

…or push an existing repository from the command line

git remote add origin [e-mail]:mabutou/fff.git
git branch -M master
git push -u origin master

…or import code from another repository