ubuntu github添加公钥 ，记录一下

echo "# depth_estimation" >> README.md
git init
git add README.md
git commit -m "first commit"
git remote add origin https://github.com/601480999/depth_estimation.git
git push -u origin master

报错了，错误如下：

Warning: Permanently added the RSA host key for IP address '13.250.177.223' to the list of known hosts.
sign_and_send_pubkey: signing failed: agent refused operation
Permission denied (publickey).
fatal: Could not read from remote repository.

Please make sure you have the correct access rights
and the repository exists.

问题解决:

1. 删除  ~/.ssh  文件
2. 生成公钥 ： ssh-keygen -t rsa -C "和你gihub对应的邮箱" ，然后一直回车，回车，回车
3. 验证：ssh -T [email protected]
   验证时候，会先出现

   The authenticity of host 'github.com (52.74.223.119)' can't be established.
   RSA key fingerprint is SHA256:nThbg6kXUpJWGl7E1IGOCspRomTxdCARLviKw6E5SY8.
   Are you sure you want to continue connecting (yes/no)? 
   

   输入yes
   
   
   不幸的是，仍然出现以下问题：
    

   Warning: Permanently added 'github.com,52.74.223.119' (RSA) to the list of known hosts.
   sign_and_send_pubkey: signing failed: agent refused operation
   Permission denied (publickey).

   
   继续输入以下两行代码就ok了。
    

   eval "$(ssh-agent -s)"
   
    ssh-add
   

   这时候重新验证一下：
    

   ssh -T [email protected]
   

   出现以下内容：
    

   Hi (你的用户名字)! You've successfully authenticated, but GitHub does not provide shell access.