What is git and github,What is difference between git and github?

What are git and GitHub, What is the difference between git and GitHub?

Git:-

It is a command-line console editor that is used to execute the git command, create a local repository, add files, remove files, create a branch, remove a branch, add files under the branch, show files under the branch, current branch status, push the file into remote, pull the file from remote.

means if we want to add any data under GitHub(remote) then you should execute the git command.

download git console from here

Download git

Github:-

it is a cloud repository that is used to store data under a cloud, it is VCS means version control system.

It is an open-source cloud web application that can be simply operated.

Open https://github.com/ and create an account under it.

Some important git command

1) git init:- it is used to initialize the git local repository under the current working directory

2) git add file- It is used to add working files under the git local repository.

git add filename

to add all files

git add .

git add *.html

git add *.txt

git add foldername

3) git commit -m "message":- This command will commit the files under a particular repository.

4) git status:- It will return the current branch name

5) git branch branch-name:- this command is used to add branch name

git branch branchname

6) get checkout branch name:- this command is used to enter into a branch

git checkout branchname

7) git ls-files:- it is used to show all files under the current repository

8) git rm -r filename|foldername

push the file into GitHub:-

It is used to move files from the local repository to the remote repository, suppose you have already created a local repository and moved the data of the local repository to the remote then you can use the push command.

If you are connecting first time from GitHub then you can simply right this command

git config --global user. name "username"

git config --global user.email "emailid"

create a repository under github.com with any name and execute the following command

git remote add origin repository URL

git branch -M main

git push -u origin main

pull the file into GitHub:-

It is used to fetch files from the remote repository to the local repository, suppose you have already created a remote repository and fetch the data into the local repository from the remote then you can use the pull command.

If you are connecting first time from GitHub then you can simply right this command

git config --global user. name "username"

git config --global user.email "emailid"

create a repository under github.com with any name and execute the following command

create backup or any name folder

cd backup

git remote -v (check status of current remote repository)

git remote add repositortyurl

git pull origin main

Another option to clone all remote content is

git clone repository URL

6. Force Pull Specific Branch (Overwrite Local Changes)

If you want to overwrite local changes:


git fetch origin branch-name
git reset --hard origin/branch-name

MOST IMPORTANT COMMAND LIST UNDER GIT:-

git commit -m "first commit"

git config --global user.name "username"

git config --global user.email "emailid"

git remote add origin repositoryurl

git branch -M main

git push -u orgin master

pull the file from github

git clone repositoryurl

Git Fetch vs Git Pull vs Git Clone

1. git clone

Purpose: Download the entire repository (all branches, commits, and files) to your local machine.

Use Case: First-time setup when you don’t have the repository locally.

Syntax:

git clone <repository-url>

Example:

git clone https://github.com/username/project.git

What It Does:

Creates a new local copy of the repository.

Automatically sets up the origin remote.

2. git fetch

Purpose: Fetch the latest changes (branches, commits, tags) from the remote repository without merging into your local branch.

Use Case: When you want to see what's new on the remote without affecting your working copy.

Syntax:

git fetch origin

Example:

git fetch origin develop

What It Does:

Downloads remote updates into origin/<branch>.

Does not change your local working branch.

3. git pull

Purpose: Fetch the latest changes from a remote branch and merge them into your current local branch.

Use Case: When you want your local branch to be up-to-date with the remote.

Syntax:

git pull origin branch-name

Example:

git pull origin main

What It Does:

Internally runs git fetch + git merge.

Updates your working directory automatically.

Steps to Remove Files from Remote Repository

1. Remove a Specific File


git rm <file_name>
git commit -m "Remove file <file_name>"
git push origin <branch_name>

Example:


git rm test.txt
git commit -m "Removed test.txt"
git push origin main

2. Remove a Folder

bash

git rm -r <folder_name>
git commit -m "Remove folder <folder_name>"
git push origin <branch_name>

Example:

bash

git rm -r logs
git commit -m "Removed logs folder"
git push origin main

Merge branchs:

git branch See branches

git checkout branch-name Switch branch

git merge branch-name Merge into current branch

git push origin branch-name Push changes to remote

git pull Pull latest from remote

git status Check for uncommitted files

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