1. 配置用户名和邮箱

本地需要配置git的user.name和user.email两个变量，表明自己的身份，对于远程仓库进行更改之后，作为操作者的信息，这两个和github的用户名和email没有任何关系，可以是完全自创的，仅仅作为身份的标识

查看当前的name 和 email

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git config user.name
git config user.email

或者

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git config --list

新安装的会显示空，如下

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[liode@fedora:4:~]$ git config user.name
[liode@fedora:5:~]$ git config user.email

设置name和email

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git config --global user.name liodegwin
git config --global user.email liodegwin@gmail.com

会显示正确的字符串

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[liode@fedora:13:~]$ git config user.name
liodegwin
[liode@fedora:14:~]$ git config user.email
liodegwin@gmail.com

同时会在用户的家目录创建好配置文件.gitconfig，里面记录的就是该用户的信息

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[liode@fedora:15:~]$ cat .gitconfig
[user]
	name = liodegwin
	email = liodegwin@gmail.com
  1. 创建远程仓库

在github中创建远程仓库，获取到ssh地址，这是一个私有的仓库，对于没有获得权限的用户，不能克隆

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git@github.com:liodegwin/blogs.git
  1. 配置连接参数

对于私有的项目，需要参与的用户具有访问的权限，这很好理解。因此，我们首先需要创建一个ssh密钥，然后远程仓库将这个密钥授予权限。

创建本地的密钥

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[liode@fedora:30:~/Documents/blogs]$ ssh-keygen -t rsa -C "liodegwin@gmail.com"
Generating public/private rsa key pair.
Enter file in which to save the key (/home/liode/.ssh/id_rsa): 
Enter passphrase (empty for no passphrase): 
Enter same passphrase again: 
Your identification has been saved in /home/liode/.ssh/id_rsa
Your public key has been saved in /home/liode/.ssh/id_rsa.pub
The key fingerprint is:
SHA256:wACNFWp+VdJtQS5kgVMQnjfQ2gD62sPGKuMsAeERygc liodegwin@gmail.com
The key's randomart image is:
+---[RSA 3072]----+
| Eo==o=B*+o.     |
|+.oo.++Bo.o      |
|oo=.  *=+..      |
|.+.. ..o.o       |
|. . o   S        |
|.  *             |
| .. *            |
|=  o .           |
|o=.              |
+----[SHA256]-----+

在～/.ssh下产生了两个文件，公钥id_rsa.pub和私钥id_rsa,复制其中公钥的内容，在github中将这个ssh key和github账户绑定，这样就能clone私密的仓库了

==注意：ssh公钥是和github账号绑定的，而不是和repository绑定，也就是说，添加了这个公钥之后，所有的私有项目都具有权限！==

  1. 本地修改，提交到远程

首先，克隆在远端的仓库:git clone ***

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[liode@fedora:70:~/Documents/blogs]$ tree
.
└── blogs
    └── README.md

1 directory, 1 file

里面只有一个README.md，现在，添加两个新的文件，然后将更新至远程仓库

手动复制了两个文件到blogs文件夹下面，然后查看git的状态

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simon@DESKTOP-SLHL7P8 MINGW64 /d/MyDocument/blogs/blogs (main)
$ git status
On branch main
Your branch is up to date with 'origin/main'.

Untracked files:
  (use "git add <file>..." to include in what will be committed)

        Qtnote1.md
        SSH.md

nothing added to commit but untracked files present (use "git add" to track)

看到有两个文件是untracked，使用git add –all 或者 git add -A跟踪这两个文件，这个命令执行之后没有任何反馈信息输出，查看现在的状态

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simon@DESKTOP-SLHL7P8 MINGW64 /d/MyDocument/blogs/blogs (main)
$ git status
On branch main
Your branch is up to date with 'origin/main'.

Changes to be committed:
  (use "git restore --staged <file>..." to unstage)
        new file:   Qtnote1.md
        new file:   SSH.md

现在将更改commit到本地仓库,并查看状态

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simon@DESKTOP-SLHL7P8 MINGW64 /d/MyDocument/blogs/blogs (main)
$ git commit -m "qt and ssh record"
[main dcb49eb] qt and ssh record
 2 files changed, 47 insertions(+)
 create mode 100644 Qtnote1.md
 create mode 100644 SSH.md

simon@DESKTOP-SLHL7P8 MINGW64 /d/MyDocument/blogs/blogs (main)
$ git status
On branch main
Your branch is ahead of 'origin/main' by 1 commit.
  (use "git push" to publish your local commits)

nothing to commit, working tree clean
  1. 远程的内容覆盖本地的内容

现在本地的branch is ahead of 远程的了，将更新提交到远程

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simon@DESKTOP-SLHL7P8 MINGW64 /d/MyDocument/blogs/blogs (main)
$ git push
Enumerating objects: 5, done.
Counting objects: 100% (5/5), done.
Delta compression using up to 12 threads
Compressing objects: 100% (4/4), done.
Writing objects: 100% (4/4), 1.17 KiB | 1.17 MiB/s, done.
Total 4 (delta 0), reused 0 (delta 0), pack-reused 0
To github.com:liodegwin/blogs.git
   18cd641..dcb49eb  main -> main

simon@DESKTOP-SLHL7P8 MINGW64 /d/MyDocument/blogs/blogs (main)
$ git status
On branch main
Your branch is up to date with 'origin/main'.

nothing to commit, working tree clean
  1. 总结和展望