Powerful Command-Line Applications in Go

Gain insights into Go’s syntax and advanced concepts. Learn about building efficient CLI tools, automating tasks, data processing, and ensure robustness with testing and benchmarking techniques.

Intermediate

139 Lessons

30h

Certificate of Completion

Gain insights into Go’s syntax and advanced concepts. Learn about building efficient CLI tools, automating tasks, data processing, and ensure robustness with testing and benchmarking techniques.

AI-POWERED

Explanations

AI-POWERED

Explanations

This course includes

86 Playgrounds

13 Quizzes

This course includes

86 Playgrounds

13 Quizzes

Course Overview

Go is a programming language that combines the advantages of static typing with the flexibility of dynamic typing. Its simplicity and prototyping capabilities make it an excellent choice for building command-line tools. It also offers features such as type safety, cross-compilation, testing, and benchmarking, enabling developers to handle complex scenarios. You’ll start by learning the foundations in Go’s fundamental syntax and progressively delve into advanced concepts. Then, you’ll learn to develop vario...Show More

What You'll Learn

An understanding of the fundamentals of the Go programming language, including its syntax and data types

A working knowledge of building command-line applications using Go

An understanding of command-line arguments, input and output, error handling, and testing

Familiarity with designing and implementing real-world applications using Go

What You'll Learn

An understanding of the fundamentals of the Go programming language, including its syntax and data types

Course Content

Introduction

Get familiar with developing Go-based command-line tools and managing dependencies with Go modules.

About the Go Language

About This Course

First Command-Line Program in Go

Get started with building, testing, and enhancing a basic word counter in Go.

Building a Basic Word Counter Testing the Basic Word Counter Command-Line Flags Wrapping Up

Exercise: Counting Unicode Characters Solution: Counting Unicode Characters Quiz: Command-Line Program in Go Preface

Interacting with Users

Examine building a flexible, user-friendly CLI to-do tool using Go’s functions and packages.

Defining the To-Do API Creating the To-Do File Creating the To-Do Test File Creating the Initial To-Do Command-Line Tool Testing the Initial CLI Implementation Handling Multiple Command-Line Options Display Command-Line Tool Usage Improving the List Output Format Increasing Flexibility with Environment Variables Capturing Input from STDIN Wrapping Up Exercise: Delete a To-Do item Solution: Delete a To-Do Item Quiz: Interacting with Users

Working with Files in Go

Enhance your skills in file handling and testing by building a Markdown preview tool in Go.

Creating a Basic Markdown Preview Tool Writing Tests for the Markdown Preview Tool Adding Temporary Files to the Markdown Preview Tool Using Interfaces to Automate Tests Adding an Auto-Preview Feature Cleaning Up Temporary Files Improving the Markdown Preview Tool with Templates Updating Functions to Improve the Markdown Preview Tool Wrapping Up Exercise: Working with Files Solution: Working with Files Quiz: Working with Files in Go

Navigating the File System

Take a closer look at developing and testing a file system crawler in Go with archiving and logging.

Developing a File System Crawler Testing with Table-Driven Testing Deleting Matched Files Testing with the Help of Test Helpers Logging Deleted Files Archiving Files Updating the Function Archiving Files Wrapping Up Exercise: Restoring Files and Directories Solution: Restoring Files and Directories Quiz: Navigating File System

Improving the Performance of CLI Tools

14 Lessons

Follow the process of enhancing Go CLI tools with benchmarking, profiling, and concurrency.

Controlling Processes

14 Lessons

Master the steps to automate CI tasks, handle errors, test commands, and manage output effectively.

Using the Cobra CLI Framework

16 Lessons

Step through developing a Go-based CLI tool using the Cobra framework, from initialization to testing.

Talking to REST API

16 Lessons

Walk through building and testing a Go REST API server and client for CRUD operations.

10.

Developing Interactive Terminal Tools

12 Lessons

Go hands-on with developing interactive CLI tools, focusing on a Pomodoro timer.

11.

Persisting Data in a SQL Database

9 Lessons

Apply your skills to persisting Pomodoro app data in SQLite with testing, summaries, and visualizations.

12.

Distributing Tool

8 Lessons

Gain tools for cross-OS notifications, customized builds, and process management in Go.

13.

Appendix

4 Lessons

Explore Go tracer for performance insights, SQLite installation, Go-SQLite integration, and containerized app compilation.

Course Author

Trusted by 1.4 million developers working at companies

Anthony Walker

@_webarchitect_

Emma Bostian 🐞

@EmmaBostian

Evan Dunbar

ML Engineer

Carlos Matias La Borde

Software Developer

Souvik Kundu

Front-end Developer

Vinay Krishnaiah

Software Developer

Eric Downs

Musician/Entrepeneur

Kenan Eyvazov

DevOps Engineer

Anthony Walker

@_webarchitect_

Emma Bostian 🐞

@EmmaBostian

Hands-on Learning Powered by AI

See how Educative uses AI to make your learning more immersive than ever before.

Instant Code Feedback

Evaluate and debug your code with the click of a button. Get real-time feedback on test cases, including time and space complexity of your solutions.

AI-Powered Mock Interviews

Put your skills to the test in a simulated interview setting. Receive personalized feedback based on your performance. Available in Premium & Premium Plus plans.

Adaptive Learning

At various checkpoints throughout Educative courses, you will be prompted to take a quick assessment. Receive a condensed curriculum tailored to your strengths and skill gaps.

Explain with AI

Select any text within any Educative course, and get an instant explanation — without ever leaving your browser.

AI Code Mentor

AI Code Mentor helps you quickly identify errors in your code, learn from your mistakes, and nudge you in the right direction — just like a 1:1 tutor!