Version control (also known as revision control, source control, or source code management) is a class of systems responsible for managing changes to computer programs, documents, large web sites, or other collections of information. Version control is a component of software configuration management. Git provides an open source option to this class of software.

1. Intro to Git & Github
Aditya Agarwal
Apoorv Aadarsh
Soumya Ranjan Mohapatro

2. Ground Rules
Be Present
Be Curious
Share Aloud
Engagement
Respect Each Other
Stay present and engaged
throughout this session
Adapt a growth mindset to
expand your perspective and
keep an open mind.
Use the chat window and share
thoughts and seek answers.
Be mindful of your surroundings,
actively listen and apply what
you learn in the interactive
activities and discussions.
With diverse opinions coming in
respect each other’s thoughts

3. We have a ZERO TOLERANCE POLICY for in-person or online harassment of any kind, including but not limited to:
Community Guidelines
In relation to, but not limited to:
● Neurodiversity
● Race
● Color
● National origin
● Gender identity
● Gender expression
● Sexual orientation
● Age
● Body size
● Disabilities
● Appearance
● Religion
● Pregnancy
● Military status
● Social demographic
● Stalking/following
● Deliberate intimidation
● Harassing photography or recording
● Sustained disruption of talks or other events
● Offensive verbal language
● Verbal language that
reinforces social structures of
domination
● Sexual imagery and language
in public spaces
● Inappropriate physical contact
● Unwelcome sexual or physical
attention
● Physical or cyber threats

4. Command Line Interface and Bourne-Again Shell
A CLI is a command line interface where the users type in text commands to interact
with the program underlying the interface.
The most important aspect of any CLI is it can be easily automated using scripting in
some programming languages that it supports.
Bash or Bourne-again Shell, is the newer version of the Bourne UNIX shell, and is
found in most of Linux based operating systems. It is the default login shell. You can
find it even on certain versions of Windows ( WSL, ;) ).
Your basic Windows Command Prompt is a perfect CLI, but once you get the taste of
bash, there’s no going back, especially if you are interested in DevOps, Scripting and
Automation.
CLI and Introduction to Bash

5. On Windows
Windows Command Prompt (after adding the environment variable)
Hyper Terminal ( Open Source CLI )
Visual Studio Code Terminal ( Ctrl + ` )
Various Ways to Use Bash or any CLI

6. What is GIT
Git is a software for tracking changes in any set of files,
usually used for coordinating work among
programmers collaboratively developing source code
during software development.
Version Control System (VCS)

7. How to install GIT on
your local system ?

8. For git
● Initialize a repository
● Make changes
● Add .gitignore file
● Stage the changes
● Commit the changes
● Create a branch (if required)
Workflow

9. git init → Init git repository
git status → Check git status
git log → Check git log ( history of previous
commit )
git add . → Stage all the changes
git add <file_name> → Stage a particular file
git commit -m “commit message” → Commit staged changes

10. Branching in git

11. Create a branch :
git branch <branch_name>
Checkout to a branch :
git checkout <branch_name>
Checkout and create a new branch at same time :
git checkout -b <branch_name>
Merge 2 branches :
1. Checkout to the branch in which to merge
2.git merge <branch_name>
Rebase branch :
git rebase <branch_name>

12. What is Github
GitHub is a web-based Git version
control repository hosting service. It
provides all of the distributed version
control and source code
management (SCM) functionalities of
Git.​

13. To work in Github
● Fork the repository
● Clone the forked repository
● Create a branch in your local repository
● Make changes to the local repository in your branch
● Stage & Commit those changes
● Push the changes to Github repository
● Create a Pull Request (PR) to the main repository
Workflow

14. Some important additional commands
Push Changes to Github :
git push origin <branch_name>
Pull recent changes from Github :
git pull origin <branch_name>
Clone a repository from Github :
git clone <link_of_github_repo>
Commit with old commit message and old commit hash :
git commit --amend --no-edit

15. Can’t remember? Don’t remember.
GitHub Desktop is a GUI interface for Git programs, and can easily do all the
work you can do with a git shell, but without the need of remembering the
commands.
Just install, login. You’ll be able to see all the commands in there.
It is essentially the Windows XP to the MS DOS, in the way that, you can do
the same stuff in both, but you don’t need to remember 100 lines of code to
just switch from one folder to another and just click and finish the job.
An Easier way to Git : GitHub Desktop