[原]git的使用(五)---删除文件

9.删除文件

[实践出真知]

创建test.txt 文件  并add 和commit到仓库

$ git status                                                           #新增加的文件test.txt
On branch master
Untracked files:
  (use "git add <file>..." to include in what will be committed)

        test.txt

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


$ git add test.txt                                                    #add 新的文件到暂存区（中转区）
warning: LF will be replaced by CRLF in test.txt.
The file will have its original line endings in your working directory.



$ git commit -m "add test.txt"                                        #commit 从暂存区将新的文件提交到仓库.git
[master 8c1d69f] add test.txt
warning: LF will be replaced by CRLF in test.txt.
The file will have its original line endings in your working directory.
 1 file changed, 1 insertion(+)
 create mode 100644 test.txt

删除在工作区刚才新建的文件test.txt

$ rm test.txt                                  #删除在工作区刚才新建的文件test.txt


$ git status                                   #查看工作区和版本库的状态
On branch master
Changes not staged for commit:
  (use "git add/rm <file>..." to update what will be committed)
  (use "git checkout -- <file>..." to discard changes in working directory)

        deleted:    test.txt                                            #表示在工作区删除了一个文件：test.txt

no changes added to commit (use "git add" and/or "git commit -a")

如下图

[看图说话]从上图中看出，当工作区的test.txt被删除的时候，可以使用git checkout -- <file> 来恢复test.txt这个文件

原理可以看成两种解释：

1、删除是一种修改，而git checkout -- <file> 就算恢复这种修改

2、删除后，git checkout -- <file>从.git仓库复制了一份test.txt到工作区

$ git checkout -- test.txt                  #恢复到修改（删除）前的状态


$ git status                                #查看状态
On branch master
nothing to commit, working directory clean

$ ls                                        #查看test.txt文件是否恢复
LICENSE  readme.txt  test.txt

 参考git教程：http://www.liaoxuefeng.com/wiki/0013739516305929606dd18361248578c67b8067c8c017b000