git签名设置

作用：只区分不同开发人员的身份

一、项目级别/仓库级别：仅在当前本地库范围内有效

签名设置用户名(UserName)和邮箱(User@email)，邮箱可以是任意邮箱（无效邮箱也可以）

 git config user.name  UserName
 git config user.email  User@email

例：用户名xingruyu，邮箱xingruyu@qq.com

zhang@SH-B MINGW64 /c/vm/mygithub (master)
$ git config user.name xingruyu

zhang@SH-B  MINGW64 /c/vm/mygithub (master)
$ git config user.email xingruyu@qq.com

信息保存位置：./.git/config 文件
zhang@SH-B  MINGW64 /c/vm/mygithub (master)
$ ls -al
total
drwxr-xr-x  zhang    2月   : ./
drwxr-xr-x  zhang    1月  : ../
drwxr-xr-x  zhang    2月   : .git/

zhang@SH-B  MINGW64 /c/vm/mygithub (master)
$ cat ./.git/config
[core]
        repositoryformatversion =
        filemode = false
        bare = false
        logallrefupdates = true
        symlinks = false
        ignorecase = true
[user]
        name = xingruyu
        email = xingruyu@qq.com

zhang@SH-B  MINGW64 /c/vm/mygithub (master)

用命令查看用户名和邮箱

zhang@SH-B MINGW64 /c/vm/mygithub (master)
$ git config user.name
xingruyu

zhang@SH-B MINGW64 /c/vm/mygithub (master)
$ git config user.email
xingruyu@qq.com

zhang@SH-B MINGW64 /c/vm/mygithub (master)

二、系统级别：登录当前操作系统的用户范围

 git config --global user.name  UserName
 git config --global user.email  User@email

信息保存位置：~/.gitconfig 文件

zhang@SH-B MINGW64 ~
$ git config --global user.name zhangfei

zhang@SH-B MINGW64 ~
$ git config --global user.email zhangfei@email.com

zhang@SH-B MINGW64 ~
$ cat .gitconfig
[user]
        name =  zhangfei
        email = zhangfei@email.com

查看

 git config --global user.name
 git config --global user.email

级别优先级，就近原则：项目级别优先于系统用户级别，二者都有时采用项目级别的签名

如果只有系统用户级别的签名，就以系统用户级别的签名为准，二者都没有不允许

三、记录git几个命令

 git rm --cached  文件名  //用于将暂存区的文件恢复到工作区

   zhang@SH-B MINGW64 /c/vm/mygithub (master)
   $ git add demo
   warning: LF will be replaced by CRLF in demo/hello.txt.
   The file will have its original line endings in your working directory

   zhang@SH-B MINGW64 /c/vm/mygithub (master)
   $ git status
  On branch master

  No commits yet

  Changes to be committed:
    (use "git rm --cached <file>..." to unstage)
          new file:   demo/hello.txt

  zhang@SH-B MINGW64 /c/vm/mygithub (master)
  $ git rm --cached demo
  fatal: not removing 'demo' recursively without -r

  zhang@SH-B MINGW64 /c/vm/mygithub (master)
  $ git status
  On branch master

  No commits yet

  Changes to be committed:
    (use "git rm --cached <file>..." to unstage)
          new file:   demo/hello.txt

  zhang@SH-B MINGW64 /c/vm/mygithub (master)
  $ git rm --cached demo/hello.txt
  rm 'demo/hello.txt'

  zhang@SH-B MINGW64 /c/vm/mygithub (master)
  $ git status
  On branch master

  No commits yet

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

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

  zhang@SH-B MINGW64 /c/vm/mygithub (master)

  git commit  //文件由缓存区提交到本地库

  zhang@SH-B MINGW64 /c/vm/mygithub (master)

  $ git add demo
  warning: LF will be replaced by CRLF in demo/hello.txt.
  The file will have its original line endings in your working directory

  zhang@SH-B MINGW64 /c/vm/mygithub (master)
  $ git status
  On branch master

  No commits yet

  Changes to be committed:
    (use "git rm --cached <file>..." to unstage)
          new file:   demo/hello.txt

  zhang@SH-B MINGW64 /c/vm/mygithub (master)
  $ git commit demo/hello.txt
  warning: LF will be replaced by CRLF in demo/hello.txt.
  The file will have its original line endings in your working directory
  [master (root-commit) 030671e] first commit
    file changed,  insertion(+)
   create mode  demo/hello.txt

  zhang@SH-B MINGW64 /c/vm/mygithub (master)
  $ git status
  On branch master
  nothing to commit, working tree clean

  zhang@SH-B MINGW64 /c/vm/mygithub (master)

  git restore 文件名字    进行清除工作区的改变,与git add 的作用相反

  zhang@SH-B MINGW64 /c/vm/mygithub/demo (master)
  $ cat hello.txt
  hello.test
  modify first

  zhang@SH-B MINGW64 /c/vm/mygithub/demo (master)
  $ vi hello.txt

  zhang@SH-B MINGW64 /c/vm/mygithub/demo (master)
  $ cat hello.txt
  hello.test
 modify first
 modify second

 zhang@SH-B MINGW64 /c/vm/mygithub/demo (master)
 $ git status
 On branch master
 Changes not staged for commit:
   (use "git add <file>..." to update what will be committed)
   (use "git restore <file>..." to discard changes in working directory)
         modified:   hello.txt

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

 zhang@SH-B MINGW64 /c/vm/mygithub/demo (master)
 $ git restore hello.txt

 zhang@SH-B MINGW64 /c/vm/mygithub/demo (master)
 $ git status
 On branch master
 nothing to commit, working tree clean

 zhang@SH-B MINGW64 /c/vm/mygithub/demo (master)
 $ cat hello.txt
 hello.test
 modify first

 zhang@SH-B MINGW64 /c/vm/mygithub/demo (master)

 git restore --staged <file>  //撤销git add 的文件

  MINGW64 /c/vm/mygithub/demo (master)
 $ git add hello.txt

 zhang@SH-B MINGW64 /c/vm/mygithub/demo (master)
 $ git status
 On branch master
 Changes to be committed:
   (use "git restore --staged <file>..." to unstage)
         modified:   hello.txt

 zhang@SH-B MINGW64 /c/vm/mygithub/demo (master)
 $ git restore --staged hello.txt

 zhang@SH-B MINGW64 /c/vm/mygithub/demo (master)
 $ git status
 On branch master
 Changes not staged for commit:
   (use "git add <file>..." to update what will be committed)
   (use "git restore <file>..." to discard changes in working directory)
         modified:   hello.txt

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

 zhang@SH-B MINGW64 /c/vm/mygithub/demo (master)