一、Generating a new SSH key
Open Git Bash.
Paste the text below, substituting in your GitHub email address.
ssh-keygen -t rsa -b 4096 -C "your_email@example.com"
// 输入这句话，连按三个回车，直接跳过下面的步骤
This creates a new ssh key, using the provided email as a label.
Generating public/private rsa key pair.
When you're prompted to "Enter a file in which to save the key," press Enter. This accepts the default file location.
Enter a file in which to save the key (/c/Users/you/.ssh/id_rsa):[Press enter]
At the prompt, type a secure passphrase. For more information, see "Working with SSH key passphrases".
Enter passphrase (empty for no passphrase): [Type a passphrase] Enter same passphrase again: [Type passphrase again]
二、安装完成之后，输入命令 ll ~/.ssh 查看是否安装成功，出现 id_rsa（锁） 和 id_rsa.pub（钥匙） 成功
三、出现锁之后，我们输入命令cat ~/.ssh/id_rsa.pub查看内容并上传github
四、创建完成之后我们可以测试一下
如果之前已经存在，输入命令rm ~./ssh/known_hosts删除之前的连接
输入命令测试连接
ssh -T git@github.com
输入yes
作者：littleyu
链接：https://www.jianshu.com/p/3ba81ffd5046
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