把本地仓库的内容推送到GitHub仓库报错：Permission denied (publickey).

今天在练习git命令行操作时，出现上述报错。

具体过程：

我在本地创建了一个git仓库，又在github上创建了一个仓库，并且让两个仓库同步。

在上述准备工作做完后，根据github的提示，需要在本地的git仓库中运行命令：

git remote add origin [e-mail]:******************

这条命令执行后没有问题，接下来执行

git push -u origin master

报错：

Permission denied (publickey).

fatal: Could not read from remote repository.

Please make sure you have the correct access rights

and the repository exists.

接着又做如下尝试：

sh-3.2# ssh -T [e-mail]

Permission denied (publickey).

然后就在网上查询资料，看到如下一些信息：

https://help.github.com/articles/error-permission-denied-publickey/

Error: Permission denied (publickey)

• MAC
• WINDOWS
• LINUX
• ALL

A "Permission denied" error means that the server rejected your connection. There could be several reasons why, and the most common examples are explained below.

Should the sudo command be used with Git?

You should not be using the sudo command with Git. If you have a very good reason you must use sudo, then ensure you are using it with every command (it's probably just better to use su to get a shell as root at that point). If you generate SSH keys without sudo and then try to use a command like sudo git push, you won't be using the same keys that you generated.

按照上述意思，我明白了我是切换到管理员用户执行的命令，之前是普通用户生成的公钥，所以不识别。