gitHub-读书笔记1

DemodeMacBook-Pro:~ Demo$ mkdir git-tutorial
DemodeMacBook-Pro:~ Demo$ cd git-tutorial

DemodeMacBook-Pro:git-tutorial WengFe$ git init
Initialized empty Git repository in /Users/WengFe/git-tutorial/.git/

初始化创建一个git仓库， 执行 git init 命令，生成一个.git目录，里面存储管理当前目录内容所需的仓库数据。我们将此目录的内容称之为‘附属于该仓库的工作数’

DemodeMacBook-Pro:git-tutorial WengFe$ git status

On branch master

Initial commit

nothing to commit (create/copy files and use "git add" to track)
DemodeMacBook-Pro:git-tutorial WengFe$ touch README.mdDemodeMacBook-Pro:git-tutorial WengFe$ git status
On branch master

Initial commit

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

README.md

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

touch 命令是向当前git库添加文件， git status 是常用的查看当前库状态 命令

DemodeMacBook-Pro:git-tutorial WengFe$ git status
On branch master

Initial commit

Changes to be committed:
(use "git rm --cached <file>..." to unstage)

new file:   README.md

DemodeMacBook-Pro:git-tutorial WengFe$ git rm -f README.md
rm 'README.md'
DemodeMacBook-Pro:git-tutorial WengFe$ git status
On branch master

Initial commit

nothing to commit (create/copy files and use "git add" to track)

> DemodeMacBook-Pro:git-tutorial WengFe$ git rm -f README.md

git rm -f (filename) 删除文件

vim(filename) 修改文件内容

vim中修改文件内容 按i开始插入字符，按esc退出编辑模式 输入冒号，输入wq 然后回车，w为保存 q为退出

+ this is a question.
Who am i?

上图为保存在README.md中的信息

DemodeMacBook-Pro:git-tutorial WengFe$ git diff
diff --git a/README.md b/README.md
index eb1ae45..7a3cc52 100644
--- a/README.md
+++ b/README.md
@@ -1 +1,2 @@
-...
++ this is a question.
+Who am i?

git diff 查看工作树和暂存区的文件区别

DemodeMacBook-Pro:git-tutorial WengFe$ git add README.md
DemodeMacBook-Pro:git-tutorial WengFe$ git diff HEAD
diff --git a/README.md b/README.md
index e69de29..7a3cc52 100644
--- a/README.md
+++ b/README.md
@@ -0,0 +1,2 @@
++ this is a question.
+Who am i?

git diff HEAD 向暂存区提交修改的文件，查看工作树与最新提交的差别

DemodeMacBook-Pro:git-tutorial WengFe$ git commit -m "a question"
[master 300a38c] a question
1 file changed, 2 insertions(+)
DemodeMacBook-Pro:git-tutorial WengFe$ git log
commit 300a38c4034e94f1934fd9de31b6a2acc4bc5687
Author: name <name@example.com>
Date:   Sat May 14 20:18:46 2016 +0800

a question

commit fdcb93177f25bf1ca3e37a2b0a1cb98e69159eae
Author: name <name@example.com>
Date:   Sat May 14 19:57:00 2016 +0800

First commit

提交本次的修改文件到工作树（git库？） 并查看日志 是否成功