PowerShell Fundamentals (1 Day) — Lesson 3: Variables and Basic Scripting

Learning Objectives

• Use variables, arrays, hash tables, operators, and strings
• Create a script with parameters, conditions, and loops
• Add comments, simple validation, and readable output

Detailed Topics

• Use variables: Use variables, arrays, hash tables, operators, and strings
• Create a script with parameters: Create a script with parameters, conditions, and loops
• Add comments: Add comments, simple validation, and readable output

Guided Demonstration

1. Review the requirement, environment, dependencies, roles, risks, and expected outcome.
2. Demonstrate the relevant configuration, analysis, code, or administration workflow step by step.
3. Capture settings, outputs, logs, screenshots, calculations, or test evidence.
4. Compare the observed result with the stated acceptance criteria.

Hands-On Activity

Write a basic reusable PowerShell script for an everyday task.

• Document assumptions and the planned sequence before making changes.
• Complete the activity and preserve evidence of normal and exception behavior.
• Record issues, corrective actions, and reusable operational or development notes.

Troubleshooting Focus

• Separate symptoms from causes and collect evidence before applying a fix.
• Check configuration, permissions, data, dependencies, capacity, connectivity, and recent changes.
• Validate rollback, recovery, support ownership, and user or business impact.

Validation Checklist

• The requirement and expected outcome are clear.
• The selected configuration, design, query, code, or process is documented.
• Normal, boundary, failure, security, and operational conditions are reviewed.
• The result is supported by evidence and the next improvement is prioritized.

Lesson Outcome

Learners can explain and apply Variables and Basic Scripting in a realistic scenario and validate the result with documented evidence.