报错信息:
Please make sure you have the correct access rights and the repository exists.

步骤如下:
ssh-keygen -t rsa -C '1451926748@qq.com'
ssh -v git@github.com
ssh-add ~/.ssg/id_rsa (如果报错 先执行ssh-agent bash)
-- 去github上面添加ssh key
vi id_rsa.pub
复制过去 到key
最后
linux ssh -T git@github.com
ssh-keygen -t rsa -C 'xxx@qq.com'

ssh -v git@github.com
最后两行:

ssh-agent -s
ssh-add ~/.ssg/id_rsa (如果报错 先执行 ssh-agent bash)

然后再github上面的setting 添加sshkey vi id_rsa.pub

最后认证
ssh -T git@github.com
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