Git之git rebase master和git rebase origin/master的区别

The different is to rebase on your local master, or the one of origin. It's likely that your local master is behind origin/master, but it could be also forward or even has different histories (not recommend)

If your master is the same as origin/master, it doesn't matter which one to use.

We rebase (and branch) from origin/master so we don't have to update our local master. (no need to do git pull on the local master branch).

If you rebase on local master, you could do：

git checkout master // 切换到本地master分支
git pull origin master // git pull <remoteName> <branchName>, 拉取远程master分支并更新本地
git checkout branchA // 切换到本地branchA分支
git rebase master // 变基，将本地master最新的代码合进本地的branchA分支。完成后，本地的branchA分支是最新的

if you rebase on origin/master, you could do：

git fetch // download objects and refs from another repository
 
git rebase origin/master // 将远端master最新的代码合进本地的branchA分支。

so a lot shorter.

For even shorter, you could also use "pulled rebase", that one is nicely to combine with the "origin rebase":

git pull origin master --rebase

No need to fetch then.

参考文献：https://stackoverflow.com/questions/45920951/when-use-rebase-master-or-origin-master