Config name and email

git config --global user.name "John Doe"
git config --global user.email "johndoe@example.com"

Get help

git config --help
git help config
man git-config

Start up

git init
git add .
git commit -m "Depot Scaffold"

add and commit
git commit -a -m "Depot Scaffold"

Compare

git diff HEAD^ HEAD

# show diff stat
git diff --stat

# show the tree-like view
git log --graph --oneline --all

Specify the file path

git diff HEAD^ HEAD app/models/product.rb

Git ammend the last commit

git commit -amend

Powerful edit commit command

git rebase --interactive HEAD^5

Git include delelted files

git add -A

Creates a remote named “origin” pointing at your GitHub repository

git remote add origin https://github.com/username/Hello-World.git

Sends your commits in the “master” branch to GitHub

git push origin master

Pull down changes

git pull orgin master