创建ssh密钥后，从github clone仓库到本地出现permissoin denied(publickey)错误。
参考官方文档（generating-ssh-keys）的方法来添加ssh密钥到ssh-agent：
连接到ssh-agent：
ssh-agent -s添加私钥：
ssh-add ~/.ssh/id_rsa
出现Could not open a connection to your authentication agent错误。
需要在连接到ssh-agent前，执行：
ssh-agent bash这样就能成功的clone了：
$ git clone git@github.com:dnawym/Concurrency.git Cloning into 'Concurrency'... Warning: Permanently added the RSA host key for IP address '192.30.252.131' to the list of known hosts. remote: Counting objects: 35, done. remote: Compressing objects: 100% (16/16), done. remote: Total 35 (delta 10), reused 34 (delta 9), pack-reused 0 Receiving objects: 100% (35/35), 3.32 KiB | 0 bytes/s, done. Resolving deltas: 100% (10/10), done. Checking connectivity... done.
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git clone permission denied(publickey)
原文：http://blog.csdn.net/yamingwu/article/details/47987655