如何给 GitHub 添加 SSH key， 如何生成 SSH key 详细图文教程！
一、 生成 SSH key
创建一个空项目：(或使用真实 Linux 主机) PS： windows 类似（？ CMD） ReadMore
https://ide.c9.io/xgqfrms/demo
打开 shell(bash), 输入：
$ npm install -g git-it
生成 SSH-Key
$ ssh-keygen -t rsa -b 4096 -C "username@email.com"
检查，添加 ssh-key 到，linux client:
$ eval "$(ssh-agent -s)"
$ ssh-add ~/.ssh/id_rsa
复制 ssh-key public 到 剪切板：
$ clip < ~/.ssh/id_rsa.pub如果不好使， 使用vim 打开，复制即可！
$ cd /home/ubuntu/.ssh/ $ ls -l $ vim id_rsa.pub
PS: 退出 vim 方法：
1. 点击 esc 键，进入vim命令模式 输入 :q
：q2. 点击 Enter 即可退出！
NEW: after add ssh key ,you should close the terminal & restart a new terminal!
二、 给 GitHub 添加 SSH key
1. 打开 设置>SSH and GPG Keys> New SSH key ,
2. 将复制的 id_rsa.pub 的 key 值，粘贴到 key 文本框，点击 Add SSH key 即可!
ok!
NEW: after add ssh key ,you should close the terminal & restart a new terminal!
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Checking for existing SSH keys
https://help.github.com/articles/checking-for-existing-ssh-keys/#platform-linux
Adding a new SSH key to your GitHub account
https://help.github.com/articles/adding-a-new-ssh-key-to-your-github-account/
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Multi Account for GitHub！
new path
创建 config,配置 multi account for GitHub！
touch config
编辑 config
vim config
NEW: after add ssh key ,you should close the terminal & restart a new terminal!
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Generating a new SSH key and adding it to the ssh-agent
After you've checked for existing SSH keys, you can generate a new SSH key to use for authentication, then add it to the ssh-agent.
Generating a new SSH key
Open Terminal.
Paste the text below, substituting in your GitHub email address.
ssh-keygen -t rsa -b 4096 -C "your_email@example.com"
# 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 (/Users/you/.ssh/id_rsa): [Press enter]using new path in case of override your other SSH-keys
Enter a file in which to save the key (/Users/you/.ssh/id_rsa): [Press enter]
$ Enter a file in which to save the key (/Users/you/.ssh/id_rsa): /Users/you/.ssh/id_rsa_github [Type a passphrase]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]Adding your SSH key to the ssh-agent
Before adding a new SSH key to the ssh-agent, you should have checked for existing SSH keys andgenerated a new SSH key.
Ensure ssh-agent is enabled:
# start the ssh-agent in the background
$ eval "$(ssh-agent -s)"
Agent pid 59566Add your SSH key to the ssh-agent. If you used an existing SSH key rather than generating a new SSH key, you'll need to replace id_rsa in the command with the name of your existing private key file.
$ ssh-add ~/.ssh/id_rsa
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