git 常用命令 mv rm checkout revert reset

关于上节讲的git add 时需要添加注释信息，也可以在git commit时再添加

laoni@DESKTOP-TPPLHIB MINGW64 /c/laoni/PycharmProjects/github_test (master)

$ git add UI.js

laoni@DESKTOP-TPPLHIB MINGW64 /c/laoni/PycharmProjects/github_test (master)

$ git commit -m "添加UI.js"

[master 358cdac] 添加UI.js

 1 file changed, 0 insertions(+), 0 deletions(-)

 create mode 100644 UI.js

laoni@DESKTOP-TPPLHIB MINGW64 /c/laoni/PycharmProjects/github_test (master)

$ git status

On branch master

nothing to commit, working tree clean

PS：关于注释信息，因为一个项目往往由多个人协作完成，所以文件的提交和修改需要在注释信息里写清楚，否则会影响到项目的展开。

git log 命令查看commit的记录：

$ git log

commit 358cdace04c0eed4e4fab58a20070f5a7d01bb98

Author: LaoNiNi <laonivv@163.com>

Date:   Tue May 30 11:03:37 2017 +0800

    添加UI.js

commit 04c94a894c0895e6565a02b9f9221b51e3ca7bf5

Author: LaoNiNi <laonivv@163.com>

Date:   Tue May 30 10:44:49 2017 +0800

    添加一个文件index.html

laoni@DESKTOP-TPPLHIB MINGW64 /c/laoni/PycharmProjects/github_test (master)

$ git log --oneline

358cdac 添加UI.js

04c94a8 添加一个文件index.html

使用git mv 【old_filename】【new_filename】修改的是暂存区的文件，不是工作区的，在工作区的文件可以直接用mv命令

$ ls

bb.css  cc.css  index.html  UI.js

laoni@DESKTOP-TPPLHIB MINGW64 /c/laoni/PycharmProjects/github_test (master)

$ git add cc.css

laoni@DESKTOP-TPPLHIB MINGW64 /c/laoni/PycharmProjects/github_test (master)

$ git status

On branch master

Changes to be committed:

  (use "git reset HEAD <file>..." to unstage)

        new file:   cc.css

laoni@DESKTOP-TPPLHIB MINGW64 /c/laoni/PycharmProjects/github_test (master)

$ git mv cc.css dd.css

laoni@DESKTOP-TPPLHIB MINGW64 /c/laoni/PycharmProjects/github_test (master)

$ git status

On branch master

Changes to be committed:

  (use "git reset HEAD <file>..." to unstage)

        new file:   dd.css

laoni@DESKTOP-TPPLHIB MINGW64 /c/laoni/PycharmProjects/github_test (master)

$ git commit -m "测试git mv"

[master 0f65134] 测试git mv

 1 file changed, 0 insertions(+), 0 deletions(-)

 create mode 100644 dd.css

laoni@DESKTOP-TPPLHIB MINGW64 /c/laoni/PycharmProjects/github_test (master)

$ git status

On branch master

nothing to commit, working tree clean

当已经添加到暂存区的文件，如果对应的工作区的文件被rm删除，有多种处理方法：1、在工作区创建个同名的文件，然后add到暂存区。2、使用 git rm 删除暂存区的这个文件。3、使用 git checkout恢复之前删除的文件（类似回滚）.

$ vim abc

laoni@DESKTOP-TPPLHIB MINGW64 /c/laoni/PycharmProjects/github_test (master)

$ ls

abc  bb.css  dd.css  index.html  UI.js

laoni@DESKTOP-TPPLHIB MINGW64 /c/laoni/PycharmProjects/github_test (master)

$ cat abc

fsdfsdfsdf

laoni@DESKTOP-TPPLHIB MINGW64 /c/laoni/PycharmProjects/github_test (master)

$ git status

On branch master

Untracked files:

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

        abc

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

laoni@DESKTOP-TPPLHIB MINGW64 /c/laoni/PycharmProjects/github_test (master)

$ git add abc

warning: LF will be replaced by CRLF in abc.

The file will have its original line endings in your working directory.

laoni@DESKTOP-TPPLHIB MINGW64 /c/laoni/PycharmProjects/github_test (master)

$ git status

On branch master

Changes to be committed:

  (use "git reset HEAD <file>..." to unstage)

        new file:   abc

laoni@DESKTOP-TPPLHIB MINGW64 /c/laoni/PycharmProjects/github_test (master)

$ rm abc

laoni@DESKTOP-TPPLHIB MINGW64 /c/laoni/PycharmProjects/github_test (master)

$ git status

On branch master

Changes to be committed:

  (use "git reset HEAD <file>..." to unstage)

        new file:   abc

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:    abc

laoni@DESKTOP-TPPLHIB MINGW64 /c/laoni/PycharmProjects/github_test (master)

$

例子

$ git checkout -- abc

laoni@DESKTOP-TPPLHIB MINGW64 /c/laoni/PycharmProjects/github_test (master)

$ git status

On branch master

Changes to be committed:

  (use "git reset HEAD <file>..." to unstage)

        new file:   abc

laoni@DESKTOP-TPPLHIB MINGW64 /c/laoni/PycharmProjects/github_test (master)

$ ls

abc  bb.css  dd.css  index.html  UI.js

laoni@DESKTOP-TPPLHIB MINGW64 /c/laoni/PycharmProjects/github_test (master)

$ cat abc

fsdfsdfsdf

git checkout --

补充：使用git rm删除暂存区的文件时，git会提示

(use --cached to keep the file, or -f to force removal)

--cached加上，只会删除暂存区的文件，本地文件不删除。-f则暂存区和本地都删除。

git rm也能删除分支上的文件（脱离版本库），删除过后可以在git status里查看到暂存区有这个被删除的文件，需要git commit后，文件就被删除了，使用git rm 时可以加上--cached，保留本地文件。

$ git status

On branch master

Changes to be committed:

  (use "git reset HEAD <file>..." to unstage)

        new file:   abc

laoni@DESKTOP-TPPLHIB MINGW64 /c/laoni/PycharmProjects/github_test (master)

$ git commit abc -m "commit abc"

[master 6d3b5d2] commit abc

  file changed,  insertion(+)

 create mode  abc

laoni@DESKTOP-TPPLHIB MINGW64 /c/laoni/PycharmProjects/github_test (master)

$ git status

On branch master

nothing to commit, working tree clean

laoni@DESKTOP-TPPLHIB MINGW64 /c/laoni/PycharmProjects/github_test (master)

$ git rm abc

rm 'abc'

laoni@DESKTOP-TPPLHIB MINGW64 /c/laoni/PycharmProjects/github_test (master)

$ git status

On branch master

Changes to be committed:

  (use "git reset HEAD <file>..." to unstage)

        deleted:    abc

laoni@DESKTOP-TPPLHIB MINGW64 /c/laoni/PycharmProjects/github_test (master)

$ git commit -m "删除分支上的abc"

[master 180917b] 删除分支上的abc

  file changed,  deletion(-)

 delete mode  abc

laoni@DESKTOP-TPPLHIB MINGW64 /c/laoni/PycharmProjects/github_test (master)

$ git status

On branch master

nothing to commit, working tree clean

laoni@DESKTOP-TPPLHIB MINGW64 /c/laoni/PycharmProjects/github_test (master)

$

git rm 分支上的文件

使用git revert HEAD 可以从当前版本撤销返回到历史版本，通过git log查看历史版本，执行git revert HEAD默认返回到上一个版本，执行git revert HEAD^^ 返回到前两个版本，执行git revert HEAD~3 返回到前三个历史版本。

$ git revert HEAD

[master 664ed39] Revert "删除分支上的abc"

  file changed,  insertion(+)

 create mode  abc

laoni@DESKTOP-TPPLHIB MINGW64 /c/laoni/PycharmProjects/github_test (master)

$ ls

abc  bb.css  dd.css  index.html  UI.js

laoni@DESKTOP-TPPLHIB MINGW64 /c/laoni/PycharmProjects/github_test (master)

$ cat abc

fsdfsdfsdf

git revert HEAD

git revert HEAD命令的提交可以在提交日志里查到，而使用git reset HEAD命令在git log 里查询不到，所以git reset的执行有一定的危险（执行后不能恢复），但git reset只是把提交到分支的回撤到暂存区而不会删除文件。使用mixed参数，git reset HEAD --mixed 那么分支的文件就不是回撤到暂存区了，而是返回到工作区。使用hard参数，git reset HEAD --hard 就是硬重置，回撤的文件里在工作区也早不到了，所以不要轻易使用硬重置，可以使用软重置。HEAD（指针）可以用版本号来替代。

laoni@DESKTOP-TPPLHIB MINGW64 /c/laoni/PycharmProjects/github_test (master)

$ git log --oneline

664ed39 Revert "删除分支上的abc"

180917b 删除分支上的abc

6d3b5d2 commit abc

0f65134 测试git mv

822f28b 测试mv命令

358cdac 添加UI.js

04c94a8 添加一个文件index.html

laoni@DESKTOP-TPPLHIB MINGW64 /c/laoni/PycharmProjects/github_test (master)

$ git reset 358cdac

laoni@DESKTOP-TPPLHIB MINGW64 /c/laoni/PycharmProjects/github_test (master)

$ git log --oneline

358cdac 添加UI.js

04c94a8 添加一个文件index.html

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git 常用命令 mv rm checkout revert reset

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