您需要推动删除操作：

  git push origin --delete hotfix 
 

（any git branch 命令只会影响你的本地回购，而不是GitHub远程回购）

详情请参阅如何在本地和远程删除Git分支？。

$ b $ a git分支-d -r 仅删除 远程跟踪分支 ，即中存在的分支。 remotes / origin 您当地回购的名称空间。 GitHub（实际的远程回购）从未被通知。

成功删除的是远程追踪分支，它位于您的本地仓库中，用于记录您从上游仓库中获取的最后一个SHA1对于那个分支：那是什么远程追踪分支。

正确的顺序是：

  git push origin --delete hotfix 
 git remote update --prune origin 
 

这将删除GitHub仓库中的修补程序分支，然后删除仓库中任何过时的远程跟踪分支。

I have a local branch, say hotfix. I put it up on GitHub using

$ git push -u origin hotfix

Then after merging the branch, I want to delete it. So I type

$ git branch -d hotfix

which deletes the branch locally. However, the remote branch is still on GitHub. Of course when I look at my remote branches,

$ git branch -r
  origin/HEAD -> origin/master
  origin/hotfix
  origin/master

hotfix is still there. So then I try

$ git branch -r -d origin/hotfix
$ git branch -r
  origin/HEAD -> origin/master
  origin/master

and hotfix is gone, as expected.

But then I go to GitHub and look at my branches, and hotfix is still there! How can I delete the remote hotfix from GitHub via the command line, without having to navigate to GitHub in my browser and delete it using the Website UI?

You need to push that deletion:

git push origin --delete hotfix

(any git branch command would only have an effect on your local repo, not the GitHub remote one)

See more at "How to delete a Git branch both locally and remotely?".

A git branch -d -r only deletes a remote tracking branch, that is branches existing in the remotes/origin namespace of your local repo. GitHub (the actual remote repo) is never notified.

What you have "successfully" deleted is the "remote tracking branch" which is in your local repo and is meant to record the last SHA1 that you fetched from the upstream repo for that branch: that what a "remote tracking branch" is.

The correct sequence is:

git push origin --delete hotfix
git remote update --prune origin

That will delete the hotfix branch on the GitHub repo, and then delete any obsolete remote tracking branch in your repo.