# Git Cheat Sheet

# What is Git?

  Git is a version control system for tracking computer file changes. It is generally used for source code management in software development.

- Git is used to track changes in the source code.
- The distributed version control tool is used for source code management.
- It allows multiple developers to work together.
- It supports non-linear development through its thousands of parallel branches.

# Configure tooling

```
git config --global user.name "[name]"
```

> Sets the name you want to be attached to all of the commits.

***

```
git config --global user.email "[email address]"
```
> Sets the email you want to be attached to your commit transactions.

***

# Creating repositories

```
git init
```
> Turn an existing directory into a git repository.

***
```
git clone [url]
```
> Clone (download) a repository that already exists on 
GitHub, including all of the files, branches, and commit.

***

# Branches

```
git branch [branch-name]
```
> Creates a new branch.

***
```
git checkout [branch-name]
```
> Switches to the specified branch and updates the 
working directory.

***

# Synchronize changes

```
git fetch
```
> Downloads all history from the remote tracking branches.

***

```
git merge
```
> Combines remote-tracking branch into a current local branch.

***

```
git push
```
> Uploads all local branch commits to GitHub.

***
```
git pull
```
> Updates your current local working branch with all new 
commits from the corresponding remote branch on GitHub. 
`git pull` is a combination of  `git fetch` and `git merge`.

***

# Make changes.

```
git log
```
> Lists version history for the current branch.

***

```
git add [file]
```
> Snapshots of the file in preparation for versioning.

***
```
git commit -m "[descriptive message]"
```
> Records file snapshots permanently in the version history.

***

```
git diff [first-branch]...[second-branch]
```
> Shows content differences between two branches.

***

# Redo commits

```
git reset [commit]
```
> Undoes all commits after [commit], preserving changes locally.

***
```
git reset --hard [commit]
```
> Discards all history and changes back to the specified commit.

***