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Git and GitHub Notes

Git is a version control system. It tracks all the changes that you make.

Git Bash is a Git tool for Windows. Once you have installed Git Bash, you will be able to browse to your directory that contains your software project, right click and select "Git Bash Here" to control your project with Git.

GitHub is the online Hub where you commit your files for everyone to use.

Initial GitHub Setup Process

Create an account on GitHub.

On Windows, install Git Bash. Once you have installed Git Bash, you will find it in a Git folder in your Apps.

Video - Installing Git Bash

Setup your username and password locally using Git Bash.

So you don't have to type in your password every time you connect to Git Hub, setup your local Git with an SSH key.

Check for an existing SSH key with:

ls ~/.ssh

Create a private and public SSH key, and give Git Hub the public key.

https://help.github.com/en/github/authenticating-to-github/connecting-to-github-with-ssh

Check SSH is setup correctly using:

ssh -T git@github.com

How to Start a New Local Git Repository

https://kbroman.org/github_tutorial/pages/init.html

Making Your First Local Commit with git commit

Git Handbook

https://guides.github.com/introduction/git-handbook/

GitHub Video Tutorials

https://www.youtube.com/githubguides

Learn Git Video

GitHub Basics - The GitHub Workflow

Command:

git add .

Will add all the changes that you've made to the project. You then need to commit them, it's a two step process. The commit is taking a snapshot.

git commit -m "Your message here"

Git Stages

File as your working copy.

git add - adds it to the staging area.

git commit - commits the file to the local repository.

GitHub Workflow Video

Git - How to Edit Files

Git Tutorial - How to View the Changes Made to Files

Learn Git and GitHub - Crash Course Video

Git Bash Commands

Show Git Config Info

git config --list

Show Current Directory git Is In

pwd

Cycle Through Previous Commands

Note, Up arrow will cycle you through your previous commands to save you typing.

Show All Files in Current Directory

ls

Clear Screen

clear

To Open Git Bash at Correct Directory

Browse into the directory in Explorer, then right click and select Git Bash here.

Set Username and Password

Note, use your GitHub username and e-mail when entering these commands:

git config --global user.name "Your name here"
git config --global user.email "your_email@example.com"

To check Username and Password set correctly:

git config --list

Note, each time you submit to GitHub, you will need to type in your password. If you don't want to do this each time, you can set up an SSH key.

Initialize Git in a New Project

Run the git init command from the folder that contains all of your project files.

See about git init

This will add a .git folder.

Add Files to Staging

git add

Commit Changes

git commit

View Commit History

git log

View Commit History from a Particular Person

git log --author="Person"

View Status

git status

Show Differences Between Your Working Copy and the Repository

git diff

Pulling Changes

git pull

Copies everything from the remote repository to your computer.

Creating a New Git Repository

Open git bash.

Change directory to the directory where you want the Git repo (use cd command).

Then use:

git init

command. Which will create a .git directory within your target directory.

 

 

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Resources

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Helps you find interesting content on GitHub.

 

 

 




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