当你在Git代码库房，比方Github或者国内的码云Gitee，创建了一个库房后，相关本地文件，或许呈现以下情况：
- 库房初始化
$ git commit -m "init page"
[master (root-commit) d832761] init page
1 file changed, 7 insertions(+)
create mode 100644 index.html
- 相关本地文件
$ git remote add origin git@github.com:xxxxx/xxxxx.github.io.git
- push remote库房
$ git push -u origin master
Permission denied (publickey).
fatal: Could not read from remote repository.
Please make sure you have the correct access rights
and the repository exists.
- 失败，被奉告没有访问权限，这是由于本机没有给代码库房装备密匙
- 开始放大招，执行命令ssh-keygen -t rsa -C 你的邮箱地址，获取public 密匙
$ ssh-keygen -t rsa -C 你的邮箱地址
Generating public/private rsa key pair.
Enter file in which to save the key (/c/Users/Administrator/.ssh/id_rsa):
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in /c/Users/Administrator/.ssh/id_rsa.
Your public key has been saved in /c/Users/Administrator/.ssh/id_rsa.pub.
The key fingerprint is:
2c:03:89:09:5c:4c:2a:b9:2b:bd:ec:2b:a0:ce:ff:22 xxxxxxxxxx@qq.com
The key's randomart image is:
+--[ RSA 2048]----+
|o +o |
| +.+ . |
|o.o o |
|.. . . |
|. o S |
|.o o |
|= . |
|=E o |
|.=Boo. |
+-----------------+
- 依据途径找到id_rsa.pub文件，仿制里边的内容，这儿演示粘贴到Github的personal settings的SSH keys中
- 再一次push提交代码，成功，well done
$ git push -u origin master
Enter passphrase for key '/c/Users/Administrator/.ssh/id_rsa':
Counting objects: 3, done.
Delta compression using up to 4 threads.
Compressing objects: 100% (2/2), done.
Writing objects: 100% (3/3), 293 bytes | 0 bytes/s, done.
Total 3 (delta 0), reused 0 (delta 0)
To git@github.com:xxxxx/xxxxx.github.io.git
* [new branch] master -> master
Branch master set up to track remote branch master from origin.
