Introduction to git presented at GDSC-UdS

1. Introduction to Git
Basics of Git and its working
By
Bhuvaneshwaran Ilanthirayan
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2. What is Git ?
It is a version control System
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3. What is a Version Control System?
My Project 1
My Project
My Project 2 …………. My Project N
What are these?
Versions
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Time

4. What is Git?
• It is a version control system
• Distributed Version control
• Cross- platform
• Open source, free
• A de factor standard of its kind
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5. Wait, then what is GitHub?
• A web-based hosting service
• Popular option
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You can still use git without GitHub

6. Installing Git
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• For Linux,
• sudo apt-get update
• sudo apt-get install git
• For Windows,
• Go to gitforwindows.org
• Download the installer and install it
• For Mac,
• Go to sourceforge.net/projects/git-osx-installer/files/
• Follow the prompts and install it

7. Configuring Git
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$ git --version
git version 2.42.0.windows.1
$ git config --global user.name "<Your name>"
$ git config --global user.email "<youremail@anywebsite.com>"

8. Lets move on to Git Basics
Setup a Repository, Saving the changes, Inspecting a repository, undoing changes
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Most of the contents will closely follow www.atlassian.com/git/

9. Git Basics
Setup a Repository
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10. git init
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git init <directory>
My Project
git init
.git

11. git clone
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git clone <repo>
git clone <repo> <directory>
Repository
My Project
Your PC

12. Git Basics
Saving the changes
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13. How to save changes in git?
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My Project Hello.py
Time
Hello.py

14. git add
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.git
Untracked changes Tracked changes
Hello.py
git add hello.py

15. git status
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Source: https://images.app.goo.gl/1cYNpVBU6fBzEwhZA

16. git commit
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git commit
git commit -a
git commit -m "commit message"
Source: attlassian.com

17. git diff
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git diff
git diff HEAD ./path/to/file
Source: attlassian.com
What is the difference?

18. Git Basics
Inspecting a repository
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19. git log
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git log
git shortlog
git log --graph --oneline --decorate

20. git tag
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git tag <tagname>
git tag -a v1.0 -m “my version 1.0"
git tag
Source: attlassian.com

21. Git Basics
Undoing changes
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22. git clean
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git clean
git clean -n
git clean -f
git clean -di
.git
Tracked changes
Hello.py
Untracked changes
.log Hello.py.meta

23. git revert
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git reset HEAD
Source: attlassian.com
54bc23f
git reset <commit-hash>

24. git reset
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git reset HEAD
Source: attlassian.com
git reset <commit-hash>

25. Lets see some advanced topics
Syncing, Git Branch, Rewriting History
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26. Git Advanced Topics
Git Branch
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27. git branch and git checkout
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Source: attlassian.com
git branch
git branch <branch>
git branch -d <branch>
git branch -m <branch>
git branch -a
git checkout ＜branch name＞
git checkout -b ＜new-branch＞

28. Git Advanced Topics
Syncing
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29. git remote
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Source: attlassian.com
git remote
git remote -v
git remote add <name> <url>
git remote rm <name>
git remote rename <name> <newname>

30. git fetch
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Source: attlassian.com
git fetch <remote>
git fetch <remote> <branch>
git fetch --dry-run
git fetch origin

31. git push
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Source: attlassian.com
git push <remote> <branch> git push <remote> --tags
git push <remote> --force git push origin :branch_name

32. Is `git pull` similar to pull request?
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Source: attlassian.com

33. git merge
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Source: attlassian.com

34. Git Advanced Topics
Rewriting History
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35. git rebase
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Source: attlassian.com
git rebase <base>
git rebase --onto <newbase> <oldbase>

36. git cheat sheet
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Please Scan this to download your git cheat sheet or use the link here
Source: attlassian.com

37. Demo
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