Day 8 Essential Git and GitHub Skills for DevOps Engineers.

💻What is Git?

Git is free and open-source version control system. It remembers every change, who made it, and lets you jump back in time if needed. Perfect for teamwork, keeping track of edits, and never losing work again.

🌐What is GitHub?

GitHub is a web-based platform that goes beyond simply hosting Git repositories. It offers the full power of Git for version control and source code management but adds its own features like issue tracking, pull requests for code review, and project management tools. Popular among software developers, designers, and creative professionals, GitHub is a hub for open-source projects and collaboration.

🔄What is Version Control? How many types of version controls we have?

Version control tracks file changes over time, letting you revert files or entire projects to previous states. It helps compare changes, identify problem sources, and trace who caused issues and when.

There are two main types of version control systems: centralized (CVCS) and distributed (DVCS).

Centralized (CVCS): Uses a central server to store all project versions. Developers check out files, make changes, and check them back in. Examples: Subversion, Perforce.
Distributed (DVCS): Developers clone the entire repository, including the full version history. They work independently and later merge changes back. Examples: Git, Mercurial, Darcs.

Installation of Git:

We can install git in the Ubuntu environment by using the below command.

sudo apt-get update
sudo apt-get install git -y

After running these commands, Git should be installed on your Ubuntu system, and you can verify the installation by checking the Git version:

git --version

Exercises:

Create a new repository on GitHub and clone it to your local machine

➤Go to GitHub.

➤Log in to your account.(If not created sign up)

➤Click on the "+" sign in the top right corner and select "New repository".

➤Fill in the repository name, description, and other necessary details.

➤Optionally, initialize the repository with a README file.

➤Click "Create repository."
Install and configure the Git:

➤Install Git using sudo apt install git

➤Configure Git with your user information
```
 git config --global user.name "Your Name"
 git config --global user.email "your.email@example.com"
```
a. Replace "Your Name" with your actual name and "your.email@example.com" with your actual email address. The --global flag ensures that this configuration is applied globally to your user account.

➤ You can check your Git configuration by using: git config --list

Clone the Repository and Navigate into the cloned repository

 git clone <repository-url>
 cd <repository-directory>

Make the changes and commit it using Git

  git status # View the changes 
  git add <filename> # Stage the changes 
  git commit -m "Your commit message here" # Commit the changes

Replace "Your commit message here" with a concise and meaningful message describing your changes.

Push changes to the remote repository.
```
 git push origin <branch-name>
```
Replace <branch-name> with the branch you are working on.
Ensure your GitHub is up-to-date, hit refresh, and voila – changes reflected successfully.

I believe this blog will be a valuable asset, bringing you fresh insights and enhancing your knowledge.

Happy Learning :-)😊