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Exercise 01 — Install GitHub CLI & Authenticate

Duration: 10 minutes | Feature: GitHub CLI | Goal: Install the GitHub CLI, authenticate with your GitHub account, and install the GitHub Copilot CLI extension so every subsequent exercise can use the copilot command.

Background

The GitHub CLI (gh) is the foundation of this workshop. Every Copilot CLI command, repository operation, and workflow query runs through it. This exercise gets it installed, authenticated, and extended with Copilot before any application code is touched.

Prerequisites

  • Python 3.11+ on PATH
  • Git installed
  • Active GitHub account with GitHub Copilot access

Step 1 — Install GitHub CLI

Windows (winget)

winget install --id GitHub.cli
gh --version

macOS (Homebrew)

brew install gh
gh --version

Already installed? Run winget upgrade --id GitHub.cli (Windows) or brew upgrade gh (macOS) to update.

Step 2 — Authenticate with GitHub CLI

gh auth login

Follow the prompts:

  1. Select GitHub.com
  2. Choose HTTPS as the protocol
  3. Authenticate via browser — paste the one-time code shown at github.com/login/device
  4. Authorise GitHub CLI when prompted

Verify:

gh auth status

Expected: ✓ Logged in to github.com as <your-username>

Step 3 — Install the GitHub Copilot CLI Extension

gh extension install github/gh-copilot
gh copilot --version

Test with a quick session:

copilot

Type Hello and press Enter — you should receive an AI response. Type exit to close.

Note: If copilot is not recognised as a standalone command, use gh copilot chat wherever this workshop writes copilot.

Key Takeaways

  • gh auth login authenticates all subsequent gh and copilot commands.
  • gh extension install github/gh-copilot adds the copilot command to your shell.
  • Run gh auth status any time you suspect your session has expired.

Next: Exercise 02 — Clone Repository & Set Up the Python Environment