codex-lv2-may-2025

Week 1 Glossary (Cross-Referenced)

Week Theme

Week 1 (Foundations: Bash & Git)

The starting week of Level 2 focused on developer tools: Shell/Terminal, Git, GitHub, and VS Code. Goal: make these tools feel natural parts of the workflow. —

Bash and Shell (Command Line Interface)

Shell/Terminal

Text-based interface to interact with the operating system. → Related: Mkdir, Git, Node.js

Current Directory / Working Directory

The folder you’re “in” while running commands. → Related: pwd

mkdir (Make Directory)

Creates a new folder. Example: mkdir my-project. → Related: Project Workflow

cd (Change Directory)

Moves into another folder. Example: cd my-project.

ls (List)

Lists files/folders in the current directory.

• ls -a: shows hidden files like .git.

pwd (Print Working Directory)

Displays your current location in the filesystem.

touch

Creates a new file. Example: touch index.html.

Tilde (~)

Represents the user’s home directory in Linux-like systems.

Local Computer

Your personal machine, where code and commands are executed. —

Git (Version Control System)

Git

Version control system for tracking changes. → Related: GitHub, Repositories

Git Workflow

Standard sequence:

• git add → stage changes
• git commit → save history
• git push → upload to remote

git init

Initializes a new repository. Run once per project.

git add

Stages changes for the next commit.

• Example: git add index.html or git add .

git commit

Saves staged changes with a message.

• Syntax: git commit -m "Initial setup".

Commit Message

Describes what changed in that commit.

git status

Shows which files are staged, unstaged, or untracked.

git log

Displays commit history.

Repository (Repo)

Storage space for code and history. Exists locally and on GitHub.

Hash

Unique identifier for a commit. → Related: Hash

Conflicts

Occur when multiple edits clash. Must be manually resolved.

Branches

Parallel versions of a project. Mentioned as a future concept. —

GitHub (Web-Based Platform)

GitHub

Hosts Git repositories online for collaboration.

Remote Repository

Hosted repo (e.g., on GitHub) synced with local repo.

git push

Uploads local commits to remote.

git pull

Downloads and integrates changes from remote.

Creating a GitHub Repository

Step to set up a new repo online (often without README initially).

URLs

Web addresses for sharing repos.

GitHub Username

Unique ID for collaboration and submissions.

Comments/Feedback

GitHub allows inline comments on code for review. —

Other Tools & Concepts

VS Code (Visual Studio Code)

IDE used for coding and running Git/shell commands. → Related: Boilerplate, Week 2 Settings

Node.js

Runtime for executing JavaScript outside browsers. → Related: JavaScript

OneDrive

Cloud sync service that can conflict with Git repos. Learn about OneDrive and how to identify which folders sync and do not sync to your OneDrive.

HTML & CSS

Fundamental web languages for structure and style. → Related: Boilerplate

Boilerplate

Starter code template (e.g., ! + Tab in VS Code for HTML). → Related: Week 2 Boilerplate