1.Generating SSH keys
参考：https://help.github.com/articles/generating-ssh-keys/
若执行ssh-add /path/to/xxx.pem是出现这个错误:Could not open a connection to your authentication agent，则先执行如下命令即可：ssh-agent bash
2. git status:查看状态
git commit -m "comments":
git push -u origin master:
git pull 获取新版本
原文：http://www.cnblogs.com/njuzwr/p/4823464.html