github生成個公鑰

1 如果沒有安裝ssh，那麼使用下面的指令

sudo apt-get install ssh

2 檢查SSH公鑰

cd ~/.ssh

看看存不存在.ssh，如果存在的話，掠過下一步；不存在的請看下一步


3 生成SSH公鑰
$ ssh-keygen -t rsa -C "[email protected]" 
# Creates a new ssh key using the provided email Generating public/private rsa key pair. 
Enter file in which to save the key (/home/you/.ssh/id_rsa):

現在你可以看到，在自己的目錄下，有一個.ssh目錄，說明成功了
3.1 輸入github密碼

Enter passphrase (empty for no passphrase): [Type a passphrase] 
Enter same passphrase again: [Type passphrase again]

這個時候輸入你在github上設置的密碼。
3.2 然後在.ssh中可以看到

Your identification has been saved in /home/you/.ssh/id_rsa. 
# Your public key has been saved in /home/you/.ssh/id_rsa.pub.
# The key fingerprint is: 
# 01:0f:f4:3b:ca:85:d6:17:a1:7d:f0:68:9d:f0:a2:db [email protected]

4 添加SSH公鑰到github

打開github，找到賬戶裏面添加SSH，把idrsa.pub內容複製到key裏面。


5 測試是否生效

使用下面的命令測試
ssh -T [email protected]

當你看到這些內容放入時候，直接yes
The authenticity of host 'github.com (207.97.227.239)' can't be established. 
RSA key fingerprint is 16:27:ac:a5:76:28:2d:36:63:1b:56:4d:eb:df:a6:48. 
Are you sure you want to continue connecting (yes/no)?

看到這個內容放入時候，說明就成功了。
Hi username! 
You've successfully authenticated, but GitHub does not provide shell access.