Introduction to Git

Git is an version control software which allows use to track the change and allows better collaboration
Git is software and Github is service which is web hosted
Make the atomic commits , these are the way to make sure that each commit is self contained also give order to code as message
.gitignore will contain the files and folders which will ignore by github
.gitkeep if you want to track empty folder
Each commit in the project is stored in .git folder in the form of a commit object. A commit object contains the following information:
- Tree Object
- Parent Commit Object
- Author
- Committer
- Commit Message
Tree Object is a container for all the files and folders in the project. It contains the following information:
- File Mode
- File Name
- File Hash
- Parent Tree Object
Everything is stored as key-value pairs in the tree object. The key is the file name and the value is the file hash.
Blob Object is present in the tree object and contains the actual file content. This is the place where the file content is stored.
The HEAD is a pointer to the current branch that you are working on

Commands

git --version : Give the version
git status : command will show you the current state of your repository
git config --list
git init : init the git repos
git add : add files to staging area
git commit : add the check point
git restore--staged <file> : to unstage
git commit -m <message> : add the checkout point with message
git log : very vast use man to know more
- git log --oneline : simplify the logs
git branch list all branch
git branch <branch_name> to create the branch
git switch <branch_name> to switch to branch_name
git switch -c <new_branch> use to create branch
git branch -m <old-branch-name> <new-branch-name> rename the branch
git branch -d <branch-name> delete the branch