1.新增ssh key到 github，讓往後push 免帳號密碼
$ ssh-keygen -t rsa -C "your_email@example.com" # Creates a new ssh key, using the provided email as a label # Generating public/private rsa key pair. # Enter file in which to save the key (/c/Users/you/.ssh/id_rsa): [Press enter]
然後到 ~/.ssh 資料夾底下打開 id_rsa.pub ，將ssh-rsa內容複製到 github伺服器上面。
$ ssh -T git@github.com
這段指令可以測試是否有成功免帳號密碼登入 github。