# Git


---

## Clone a repository
Copy an existing remote repository to your local machine.

```bash
git clone <repository_url>
```
Example:  
```bash
git clone https://github.com/user/repo.git
```

---

## Pull changes from remote
Fetch and merge changes from a remote repository to your local branch.

```bash
git pull <remote> <branch>
```
Example:  
```bash
git pull origin main
```

---

## Push changes to remote
Upload local commits to a remote repository.

```bash
git push <remote> <branch>
```
Example:  
```bash
git push origin main
```

---

## Rebase branches
Reapply commits on top of another base tip.

```bash
git rebase <branch>
```
Example:  
```bash
git rebase main
```

---

## Initialize a new repository
Create a new Git repository in the current directory.

```bash
git init
```

---

## Manage remotes

- **Add a remote:**  
```bash
git remote add <name> <url>
```

- **Set/Update remote URL:**  
```bash
git remote set-url <name> <url>
```

- **Remove a remote (e.g., origin):**  
```bash
git remote remove origin
```

---

## Commit changes with GPG signature
Sign your commit with a GPG key.

```bash
git commit -S -m "Your commit message"
```
- `-S` → sign commit with GPG key  
- `-m` → commit message

---

## Notes
- Always ensure your branch is up-to-date before pushing:  
```bash
git pull --rebase
```
- Configure your GPG key once globally for signed commits:  
```bash
git config --global user.signingkey <key-id>
git config --global commit.gpgSign true
```
- To check the configured remotes:  
```bash
git remote -v
```
- To see commit history:  
```bash
git log --oneline --graph --all --decorate
```
- Stage changes before committing:  
```bash
git add <file>
git add .  # stage all changes
```

---

## Example Workflow

```bash
git clone https://github.com/user/repo.git
cd repo
git checkout -b feature-branch
# make changes
git add .
git commit -S -m "Add new feature"
git pull --rebase origin main
git push origin feature-branch
```