preface

Git is an essential skill at work and plays a vital role in the development process of a project. Below introduce some Git in the work some use practice, common flow, common command, for your reference! Java Oop, Java Collections containers, Java exceptions, concurrent programming, Java reflection, Java serialization, JVM, Redis, Spring MVC, MyBatis, MySQL database, messaging middleware MQ, Dubbo, Linux, ZooKeeper, distributed & data structure and algorithm, etc. 25 thematic technical points, are all small editor in each big factory summary of the interview real questions, there have been many fans with this PDF to win many big factory offer. Today, here is a summary to share to everyone! [Finished]

The full version of the Java interview questions address: 2021 latest interview questions collection collection.

The serial number	project	content	link
1	The middleware	Java Middleware (2021)	Juejin. Cn/post / 694870…
2	Micro service	Java Microservices (2021)	Juejin. Cn/post / 694906…
3	Concurrent programming	Concurrent Programming in Java (2021 latest Edition)	Juejin. Cn/post / 695053…
4	Java based	Java Basics (2021)	Juejin. Cn/post / 695062…
5	Spring Boot	Spring Boot Interview Questions (2021 Latest edition)	Juejin. Cn/post / 695137…
6	Redis	Redis Interview Questions (2021 Latest edition)	Juejin. Cn/post / 695166…
7	Spring MVC	Spring MVC (2021)	Juejin. Cn/post / 695166…
8	Spring Cloud	Spring Cloud Interview Questions (2021)	Juejin. Cn/post / 695245…
9	MySQL optimization	MySQL optimize interview questions (2021 latest edition)	Juejin. Cn/post / 695246…
10	JVM	JVM Performance Tuning Interview questions (2021 Latest Edition)	Juejin. Cn/post / 695246…
11	Linux	Linux Interview Questions (2021 latest edition)	Juejin. Cn/post / 695287…
12	Mybatis	Mybatis (2021 latest Edition)	Juejin. Cn/post / 695287…
13	Network programming	TCP, UDP, Socket, Http Network programming interview (2021 latest edition)	Juejin. Cn/post / 695287…
14	Design patterns	Design Mode Interview Questions (2021 Latest edition)	Juejin. Cn/post / 695544…
15	Big data	100 Big Data Interview Questions (2021 latest edition)	Juejin. Cn/post / 695544…
16	Tomcat	Tomcat Interview Questions (2021 Latest edition)	Juejin. Cn/post / 695570…
17	multithreading	Multithreaded Interview Questions (2021 Latest edition)	Juejin. Cn/editor/draf…
18	Nginx	Nginx_BIO_NIO_AIO interview Questions (2021 Latest edition)	Juejin. Cn/editor/draf…
19	memcache	Memcache Interview Questions (2021 latest edition)	Juejin. Cn/post / 695608…
20	Java exception	Java Exception Interview Questions (2021 Latest edition)	Juejin. Cn/post / 695644…
21	The Java virtual machine	Java Virtual Machine Interview (2021 latest edition)	Juejin. Cn/post / 695658…
22	Java collection	Java Set Interview Questions (2021 Latest edition)	Juejin. Cn/post / 695684…
23	Git Git	Git Command (2021)	Juejin. Cn/post / 695692…
24	Elasticsearch	Elasticsearch (2021 Latest Edition)	Juejin. Cn/post / 695840…
25	Dubbo	Dubbo Interview Questions (2021 Latest edition)	Juejin. Cn/post / 695842…

1. Configuration Operations

1. Global configuration

Git config --global user.email -- git config --global user.email -- git config --global user.email -- git config --global user.emailCopy the code

2. The current warehouse configuration

Git config --local user.email 'git config --local user.emailCopy the code

3. View the global configuration

git config --global --list
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4. View the current warehouse configuration

git config --local --list
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5. Delete the global configuration

Git config --unset --global Specifies the configuration item to be deletedCopy the code

6. Delete the current warehouse configuration

Git config --unset --local Specifies the configuration item to be deletedCopy the code

2. Local operation

1. View the changes

git status
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2. Add all changes under the current directory and its subdirectories to the staging area

git add .
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3. Add all changes in the warehouse to the temporary storage area

git add -A
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4. Add the specified file to the staging area

Git add file 1 file 2 file 3Copy the code

5. Compare all differences between workspaces and staging areas

git diff
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6. Compare a file workspace and staging area

Git diffCopy the code

7. Compare all differences between the staging area and HEAD

git diff --cached
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8. Compare the difference between a file’s staging area and HEAD

Git diff --cached fileCopy the code

9. Compare a file workspace with a HEAD

Git diff HEAD fileCopy the code

Create a COMMIT

git commit
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11. Restore the files specified in the workspace to be consistent with the staging area

Git checkout file 1 file 2 file 3Copy the code

12, restore the staging area specified file to be consistent with HEAD

Git reset file 1 File 2 File 3Copy the code

13. Restore all files in the staging area and workspace to be the same as HEAD

git reset --hard
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14. Use DiffTool to compare any two commits

Git DiffTool Commit 1 Commit 2Copy the code

Check which files are not controlled by Git

git ls-files --others
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16. Save unprocessed changes to stash first

git stash
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17. Pick up where you left off when temporary tasks are finished

Pop doesn’t keep Stash
Apply to retain stash

git stash pop
git stash apply
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18. Look at all stash

git stash list
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Retrieve a stash change

Git stash pop stash@{number n}Copy the code

20. Gracefully modify the last commit

git add. 
git commit --amend
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Branch operation

1. View the current working branch and local branch

 git branch -v
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2. View the local and remote branches

 git branch -av
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3. View the remote branch

git branch -rv
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4. Switch to the specified branch

Git checkout specifies a branchCopy the code

5. Create a new branch based on the current branch

Git branch New branchCopy the code

6. Create a branch based on the specified branch

Git branch New branch Specifies the branchCopy the code

7. Create branches based on a COMMIT

Git branch Specifies the ID of a commit in a new branchCopy the code

8. Create and switch to the branch

Git checkout -b new branchCopy the code

9. Safely delete a local branch

Git branch -d Specifies the branch to be deletedCopy the code

10. Forcibly delete a local branch

Git branch -d Specifies the branch to be deletedCopy the code

Delete all local branches that have been merged with the master branch

 git branch --merged master | grep -v '^\*\| master' | xargs -n 1 git branch -d
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12. Delete all local branches of remote Origin that no longer exist

 git remote prune orign
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13, merge branch A into current branch and create A COMMIT for merge

Git merge A branchCopy the code

Merge branch A into branch B and create A COMMIT for merge

Git merge A branch B branchCopy the code

15. Rebase the current branch based on the B branch so that the B branch can join the current branch

Git rebase B branchCopy the code

16. Rebase A branch from B to merge B into A

Git rebase B branch A branchCopy the code

4. Change history

1. Each commit of the current branch is displayed in one line

git log --oneline
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2. Display the nearest N commits

git log -n
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3. Show the history of all branches by graphical representation

 git log --oneline --graph --all
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4. View all commits that involve changes to a file

The git log fileCopy the code

5. Modify the corresponding commit and author for each line of a file

Git blame fileCopy the code

Five, label operation

1. View existing labels

 git tag
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2. Create a label

Git tag v1.0Copy the code

3. Create a label with remarks

Git tag-a v1.0-mCopy the code

4. Label the specified COMMIT

Git tag v1.0 commitidCopy the code

5. Push a local TAB

Git push origin v1.0Copy the code

6. Push all unpushed local tags

git push origin --tags
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7. Delete a local label

Git tag - d v1.0Copy the code

8. Delete a remote label

Git push origin: refs/tags/v1.0Copy the code

6. Remote interaction

1. View all remote repositories

 git remote -v
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2. Add a remote repository

git remote add url
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3. Delete the remote repository

Git remote remove remote nameCopy the code

4. Rename the remote repository

Git remote rename git remote renameCopy the code

5. Pull all branch and label changes from the remote end to the local end

 git fetch remote
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6. Pull changes from the remote branch to the local branch and merge the changes to the local branch

Git pull Origin Branch nameCopy the code

7. Push the local branch to the remote

Git push Origin branch nameCopy the code

8. Delete the remote branch

Git push remote --delete remote branch name Git push remote: remote branch nameCopy the code

Git Command (2021)