git

终端：cd ~/.ssh

// 生成SSH Key（你的邮箱）：

$ ssh-keygen -t rsa -C lizhimin@gmail.com

// 回车后（输入密码）：

Generating public/private rsa key pair.
Enter file in which to save the key (/Users/lizhimin/.ssh/id_rsa): 
Enter passphrase (empty for no passphrase): 
Enter same passphrase again: 

// 结果：

Your identification has been saved in /Users/lizhimin/.ssh/id_rsa.
Your public key has been saved in /Users/lizhimin/.ssh/id_rsa.pub.
The key fingerprint is:
0a:7a:82:a5:9f:07:9b:be:6c:29:07:30:9d:c6:13:c2 542045215@qq.com
The key‘s randomart image is:
+--[ RSA 2048]----+
|.                |
|.E.              |
| + o             |
|o *              |
|.o...   S        |
|.+.. . .         |
|o.o=. .          |
|.o*+.            |
| =*o             |
+-----------------+

// 然后在这个目录就可以找到你生成的SSH Key:

/Users/lizhimin/.ssh/id_rsa.pub.  //  pbcopy < ~/.ssh/id_rsa.pub  复制秘钥

// 然后将内容添加到你的GitHub中：

git

原文：http://www.cnblogs.com/xmhu/p/6723102.html