博客为日常工作学习积累总结：
1.升级git版本：
参考博客：https://blog.csdn.net/yuexiahunone/article/details/78647565由于新的版本可以使用gitea功能所以升级git版本，centos7默认git版本如下：
[root@git ~]# git --version
git version 1.8.3.1
2.yum默认安装不适合生成环境需要编译安装此步奏忽略：
yum命令安装git是最简单的,直接键入命令安装就可以了
yum install git -yy
3.编译安装：
yum install curl-devel expat-devel gettext-devel openssl-devel zlib-devel gcc perl-ExtUtils-MakeMaker
wget https://github.com/git/git/archive/v2.9.5.zip
unzip v2.9.5.zip
cd git-2.9.5
make prefix=/usr/local/git all
make prefix=/usr/local/git install
rm -rf /usr/bin/git
ln -s /usr/local/git/bin/git /usr/bin/git
git --version
[root@git git-2.9.5]# git --version
git version 2.9.5
4.初始化：
[root@git ~]# git config
git help
[root@git ~]# mkdir test
[root@git ~]# cd test/
[root@git learngit]# git init
Initialized empty Git repository in /root/learngit/.git/
[root@git learngit]# git config --list
core.repositoryformatversion=0
core.filemode=true
core.bare=false
core.logallrefupdates=true
5.配置git目录：
[root@git learngit]# git config --global user.name "Eric-xgc"
[root@git learngit]# git config --global user.email 741017474@qq.com
[root@git learngit]# git config --list
user.name=Eric-xgc
user.email=741017474@qq.com
core.repositoryformatversion=0
core.filemode=true
core.bare=false
core.logallrefupdates=true
6.git应用原理：
图片来源老男孩教育郭宏泽
git add
git status
git status -s
git diff
git diff --staged
git commit
git reset
git rm
git rm --cached README
git mv
7.测试命令功能：
1.初始化后
[root@git test]# git status
On branch master
Initial commit
nothing to commit (create/copy files and use "git add" to track)
2.新增一个文件
[root@git test]# vim index.html
<h1>welcome to ht <h1>
[root@git test]# git status
On branch master
Initial commit
Untracked files:
(use "git add <file>..." to include in what will be committed)
index.html
nothing added to commit but untracked files present (use "git add" to track)
3.提交一个文件到暂存区
[root@git test]# git add index.html
[root@git test]# git status
On branch master
Initial commit
Changes to be committed:
(use "git rm --cached <file>..." to unstage)
new file: index.html
4.提交到本地仓库
[root@git test]# git commit -m "first commit"
[master (root-commit) 6083db0] first commit
1 file changed, 1 insertion(+)
create mode 100644 index.html
[root@git test]# git status
On branch master
nothing to commit, working tree clean
5.查看提交日志
[root@git test]# git log
commit 6083db06d756ef50053cb439e55144242f95b5a8
Author: Eric-xgc <741017474@qq.com>
Date: Mon Apr 1 14:31:43 2019 +0800
first commit
6.测试rm命令
[root@git test]# vim pay.html
pay modle
[root@git test]# git status
On branch master
Changes to be committed:
(use "git reset HEAD <file>..." to unstage)
new file: pay.html
[root@git test]# vim news.html
news center
[root@git test]# git add news.html
[root@git test]# git status
On branch master
Changes to be committed:
(use "git reset HEAD <file>..." to unstage)
new file: news.html
new file: pay.html
[root@git test]# git rm --cached pay.html
rm 'pay.html'
[root@git test]# git status
On branch master
Changes to be committed:
(use "git reset HEAD <file>..." to unstage)
new file: news.html
Untracked files:
(use "git add <file>..." to include in what will be committed)
pay.html
[root@git test]# git commit -m "news"
[master 33a1733] news
1 file changed, 1 insertion(+)
create mode 100644 news.html
[root@git test]# git log
commit 33a17331c4060afd85d303dccad8406f8c74037b
Author: Eric-xgc <741017474@qq.com>
Date: Mon Apr 1 14:46:44 2019 +0800
news
commit 6083db06d756ef50053cb439e55144242f95b5a8
Author: Eric-xgc <741017474@qq.com>
Date: Mon Apr 1 14:31:43 2019 +0800
first commit
[root@git test]# git status
On branch master
Untracked files:
(use "git add <file>..." to include in what will be committed)
pay.html
nothing added to commit but untracked files present (use "git add" to track)
[root@git test]# vim pay.html
pay modle
22222222
bug
[root@git test]# git add pay.html
[root@git test]# git commit -m "pay"
[master 2e667e5] pay
1 file changed, 4 insertions(+)
create mode 100644 pay.html
[root@git test]# git log
commit 2e667e57e89b6794592563c14ae52cf2da3c8736
Author: Eric-xgc <741017474@qq.com>
Date: Mon Apr 1 14:48:54 2019 +0800
pay
commit 33a17331c4060afd85d303dccad8406f8c74037b
Author: Eric-xgc <741017474@qq.com>
Date: Mon Apr 1 14:46:44 2019 +0800
news
commit 6083db06d756ef50053cb439e55144242f95b5a8
Author: Eric-xgc <741017474@qq.com>
Date: Mon Apr 1 14:31:43 2019 +0800
first commit
7.分支管理
业务场景：当需要开发新的模块时会经常改动代码，不能影响主分支master
创建分支：about
git branch about
[root@git test]# git branch about
切换分支
git checkout about
[root@git test]# git checkout about
Switched to branch 'about'
[root@git test]# git status
On branch about
nothing to commit, working tree clean
测试分支与主分支：
[root@git test]# vim about.html
about us
[root@git test]# git add .
[root@git test]# git commit -m "about"
测试about分支有4次提交
[root@git test]# git log
commit 6a24c259931e8401ac46448d4873f77eae167de9
Author: Eric-xgc <741017474@qq.com>
Date: Mon Apr 1 15:46:34 2019 +0800
about
commit 2e667e57e89b6794592563c14ae52cf2da3c8736
Author: Eric-xgc <741017474@qq.com>
Date: Mon Apr 1 14:48:54 2019 +0800
pay
commit 33a17331c4060afd85d303dccad8406f8c74037b
Author: Eric-xgc <741017474@qq.com>
Date: Mon Apr 1 14:46:44 2019 +0800
news
commit 6083db06d756ef50053cb439e55144242f95b5a8
Author: Eric-xgc <741017474@qq.com>
Date: Mon Apr 1 14:31:43 2019 +0800
first commit
切回主分支查看log只有3次提交
[root@git test]# git checkout master
Switched to branch 'master'
[root@git test]# git log
commit 2e667e57e89b6794592563c14ae52cf2da3c8736
Author: Eric-xgc <741017474@qq.com>
Date: Mon Apr 1 14:48:54 2019 +0800
pay
commit 33a17331c4060afd85d303dccad8406f8c74037b
Author: Eric-xgc <741017474@qq.com>
Date: Mon Apr 1 14:46:44 2019 +0800
news
commit 6083db06d756ef50053cb439e55144242f95b5a8
Author: Eric-xgc <741017474@qq.com>
Date: Mon Apr 1 14:31:43 2019 +0800
first commit
回到测试分支
[root@git test]# git checkout about
Switched to branch 'about'
[root@git test]# git branch
* about
master
[root@git test]# git branch -v
* about 6a24c25 about
master 2e667e5 pay
8. 将测试分支合并到主分支：
[root@git test]# vim about2.html
about2
[root@git test]# git add .
[root@git test]# git commit -m "about2"
[about 0283739] about2
1 file changed, 1 insertion(+)
create mode 100644 about2.html
测试分支有5次提交
[root@git test]# git log
commit 02837391d9b360902f8599ca91ad83eaf2560324
Author: Eric-xgc <741017474@qq.com>
Date: Mon Apr 1 15:55:49 2019 +0800
about2
commit 6a24c259931e8401ac46448d4873f77eae167de9
Author: Eric-xgc <741017474@qq.com>
Date: Mon Apr 1 15:46:34 2019 +0800
about
commit 2e667e57e89b6794592563c14ae52cf2da3c8736
Author: Eric-xgc <741017474@qq.com>
Date: Mon Apr 1 14:48:54 2019 +0800
pay
commit 33a17331c4060afd85d303dccad8406f8c74037b
Author: Eric-xgc <741017474@qq.com>
Date: Mon Apr 1 14:46:44 2019 +0800
news
commit 6083db06d756ef50053cb439e55144242f95b5a8
Author: Eric-xgc <741017474@qq.com>
Date: Mon Apr 1 14:31:43 2019 +0800
first commit
主分支还是3次提交
[root@git test]# git checkout master
Switched to branch 'master'
[root@git test]# git log
commit 2e667e57e89b6794592563c14ae52cf2da3c8736
Author: Eric-xgc <741017474@qq.com>
Date: Mon Apr 1 14:48:54 2019 +0800
pay
commit 33a17331c4060afd85d303dccad8406f8c74037b
Author: Eric-xgc <741017474@qq.com>
Date: Mon Apr 1 14:46:44 2019 +0800
news
commit 6083db06d756ef50053cb439e55144242f95b5a8
Author: Eric-xgc <741017474@qq.com>
Date: Mon Apr 1 14:31:43 2019 +0800
first commit
将测试分支merge到主分支：
[root@git test]# git merge about
Updating 2e667e5..0283739
Fast-forward
about.html | 1 +
about2.html | 1 +
2 files changed, 2 insertions(+)
create mode 100644 about.html
create mode 100644 about2.html
查看主分支log
[root@git test]# git checkout master
Already on 'master'
[root@git test]# git log
commit 02837391d9b360902f8599ca91ad83eaf2560324
Author: Eric-xgc <741017474@qq.com>
Date: Mon Apr 1 15:55:49 2019 +0800
about2
commit 6a24c259931e8401ac46448d4873f77eae167de9
Author: Eric-xgc <741017474@qq.com>
Date: Mon Apr 1 15:46:34 2019 +0800
about
commit 2e667e57e89b6794592563c14ae52cf2da3c8736
Author: Eric-xgc <741017474@qq.com>
Date: Mon Apr 1 14:48:54 2019 +0800
pay
commit 33a17331c4060afd85d303dccad8406f8c74037b
Author: Eric-xgc <741017474@qq.com>
Date: Mon Apr 1 14:46:44 2019 +0800
news
commit 6083db06d756ef50053cb439e55144242f95b5a8
Author: Eric-xgc <741017474@qq.com>
Date: Mon Apr 1 14:31:43 2019 +0800
first commit
查看被merged的分支：
[root@git test]# git branch --merged
about
* master
[root@git test]# git branch --no-merged
[root@git test]# git branch test
[root@git test]# git branch --merged
about
* master
test
[root@git test]# vim test.html
test
testi1
[root@git test]# git add .
[root@git test]# git commit -m "test2"
[root@git test]# git branch --merged
about
* master
[root@git test]# git branch --no-merged
test
退出git log
在英文状态下按q退出
9.checkerout命令
git checkerout 命令：用于切换分支。
[root@git test]# git checkout master
回滚本地目录修改的文件
git checkerout -- 修改的文件
git checkout -- index.html
测试用例：
[root@git test]# vim index.html
<h1>welcome to ht <h1>
22222
[root@git test]# git status
On branch master
Changes not staged for commit:
(use "git add <file>..." to update what will be committed)
(use "git checkout -- <file>..." to discard changes in working directory)
modified: index.html
no changes added to commit (use "git add" and/or "git commit -a")
[root@git test]# git checkout -- index.html
[root@git test]# git status
On branch master
nothing to commit, working tree clean
修改被撤销了，
[root@git test]# cat index.html
<h1>welcome to ht <h1>
10.reset 回滚暂存区修改的文件
git log得到的id号
git reset --hard id号
所有的操作记录
[root@git test]# git reflog
0283739 HEAD@{0}: checkout: moving from test to master
3a525df HEAD@{1}: checkout: moving from master to test
0283739 HEAD@{2}: checkout: moving from test to master
3a525df HEAD@{3}: commit: test2
eed3382 HEAD@{4}: commit: test
0283739 HEAD@{5}: checkout: moving from master to test
0283739 HEAD@{6}: checkout: moving from master to master
0283739 HEAD@{7}: merge about: Fast-forward
2e667e5 HEAD@{8}: checkout: moving from about to master
0283739 HEAD@{9}: commit: about2
6a24c25 HEAD@{10}: checkout: moving from master to about
2e667e5 HEAD@{11}: checkout: moving from about to master
6a24c25 HEAD@{12}: commit: about
2e667e5 HEAD@{13}: checkout: moving from master to about
2e667e5 HEAD@{14}: commit: pay
33a1733 HEAD@{15}: commit: news
6083db0 HEAD@{16}: commit (initial): first commit
git checkout 6083db0
8.远程仓库
[root@git ~]# git clone https://github.com/guohongze/scripts.git
[root@git ~]# cd scripts/
[root@git scripts]# ls
mysql nfs nginx php README.md redis svn zookeeper
[root@git scripts]# git status
On branch master
Your branch is up-to-date with 'origin/master'.
nothing to commit, working tree clean
[root@git scripts]# git commit -m "readme update-eric"
On branch master
Your branch is up-to-date with 'origin/master'.
Changes not staged for commit:
modified: README.md
no changes added to commit
[root@git scripts]# git remote
origin
[root@git scripts]# git remote -v
origin https://github.com/guohongze/scripts.git (fetch)
origin https://github.com/guohongze/scripts.git (push)
[root@git scripts]# git push origin master
/root/learngit/test
[root@git test]# git remote add orgin https://github.com/Eric-xgc/test.git
[root@git test]# git remote -v
orgin https://github.com/Eric-xgc/test.git (fetch)
orgin https://github.com/Eric-xgc/test.git (push)
打标签：
[root@git test]# git tag -a v1.0 -m "feature finished"
[root@git test]# git tag
v1.0