Git Workflow Overview

Files transition through three stages: working directory → staging area → local repository → remote repository.

Installation

$ sudo yum install -y git
$ git --version
git version 2.34.1

Repository Initialization

$ mkdir project
$ cd project
$ git init
Initialized empty Git repository in /home/user/project/.git/
$ ls -a
.git/

Staging Changes

$ touch README.md
$ git status
Untracked files:
  README.md

$ git add README.md
$ git status
Changes to be committed:
  new file: README.md

Commititng Changes

$ git commit -m "Initial commit"
[main (root-commit) 1a2b3c4] Initial commit
 1 file changed, 0 insertions(+)
 create mode 100644 README.md

Version Reversion

$ git log --oneline
1a2b3c4 (HEAD -> main) Update config
d4e5f6a Add feature

$ git reset --hard d4e5f6a
HEAD is now at d4e5f6a Add feature

Remote Repository Configuration

Adding Remote

$ git remote add origin git@github.com:user/repo.git
$ git remote -v
origin  git@github.com:user/repo.git (fetch)
origin  git@github.com:user/repo.git (push)

SSH Authentication

$ ssh-keygen -t ed25519
$ cat ~/.ssh/id_rsa.pub

Cloning Repositories

$ git clone git@github.com:user/repo.git
Cloning into 'repo'...

Pushing Changes

$ git push -u origin main

Pulling Updates

$ git pull origin main

Branch Management

Branch Opeartions

$ git branch
* main

$ git branch -a
* main
  remotes/origin/main

$ git checkout -b feature
Switched to a new branch 'feature'

$ git checkout main
Switched to branch 'main'

$ git push -u origin feature

Tag Management

Tag Operations

$ git tag -a v1.0 -m "Initial release"
$ git tag
v1.0

$ git show v1.0
$ git tag -d v1.0
$ git push origin --tags

Tag-Based Cloning

$ git clone -b v1.0 git@github.com:user/repo.git