Keep your fork synced

1  clone 自己的git仓   

git clone https://github.com/YOUR-USERNAME/Spoon-Knife

2  查看自己的本地仓对应的远程仓

git remote -v

3  增加新的远程仓

git remote add upstream https://github.com/octocat/Spoon-Knife.git

4  

git remote -v

5  同步远程仓数据

git fetch upstream

6  切换到本地仓的master分支

git checkout master

7  将远程仓的master分支merge到本地的master分支

git merge upstream/master

Keep your fork synced

原文：http://www.cnblogs.com/Eastsong/p/4989674.html