A comprehensive learning series dedicated to mastering GitHub for version control, collaborative software development, pull requests, code reviews, and automating workflows with GitHub Actions.
GitHub provides two distinct static analysis security features: Secret Scanning, which detects leaked credentials in code and text, and CodeQL Analysis, which performs semantic code analysis to find vulnerabilities like SQL injection or cross-site scripting. A critical change occurred in May 2025: CodeQL no longer detects hardcoded secrets. Secret Scanning is now the sole mechanism…
An organization is a shared account where businesses and open-source projects manage many repositories at once. It is not a user account and it does not own code directly—it owns repositories, and access to those repositories is granted to people and teams through a layered permission model. The LFCS/GitHub exam tests this hierarchy: organization roles…
The GitHub CLI (gh) is the official command-line interface for GitHub. It brings the platform’s core operations—repositories, issues, pull requests, Actions, releases—into the terminal, where they can be scripted, aliased, and composed. For the exam, the critical distinction is between gh and git: git manages the local repository and its history; gh manages the GitHub…
GitHub Copilot is no longer a single autocomplete tool. It is a suite of AI-powered features spanning inline code suggestions, chat interfaces in the IDE and on GitHub.com, automated code review, and agent-based workflows that can plan and execute multi-step tasks. The LFCS/GitHub exam tests the conceptual model: what Copilot is, how it integrates into…
1. Authentication (gh) 2. Repositories 3. Issues & Pull Requests 4. GitHub Actions (gh) 5. Releases 6. Git: Commits, Tags, Remotes 7. Git: Merging Strategies 8. CODEOWNERS & Branch Protection 9. Workflow Configuration (.github/workflows/ci.yml) 10. GitHub Packages (GHCR) 11. Security & Dependabot 12. GitHub Pages & Custom Domains 13. .github Directory Layout