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Writing Command Line Applications in Go

47mIntermediate2024-01-18

Authors

Miki Tebeka

CEO at 353Solutions

Course details

Command line applications are used throughout the programming industry. They are easy to combine and automate, quick to use, you can use them over SSH, and you can combine several command line tools to create sophisticated workflows. And Go is an ideal language for writing command line applications—distribution is a single static executable and it’s easy to cross compile. In this course, learn how to write effective command line applications in Go. Instructor Miki Tebeka covers parsing arguments, validation, subcommands, testing, building, shipping, and much more.

Skills covered

GoHelp Desk SkillsWeb Development ToolsIT Help DeskGoogleWeb DevelopmentProgramming LanguagesSoftware DevelopmentOne-Off

Concepts

0. Introduction

01 - Command-line applications in Go
02 - What you should know
03 - Using Codespaces

1. The Flag Package

04 - Parsing arguments
05 - Providing help
06 - Custom argument types
07 - Environment variables
08 - Subcommands
09 - Challenge - Writing a command-line application
10 - Solution - Writing a Command-line application

2. Testing

11 - Running commands
12 - Supporting redirection
13 - Setting environment variables
14 - Challenge - Write a test
15 - Solution - Write a test

3. Shipping Your Code

16 - Building static applications
17 - Embedding assets
18 - Building for multiple targets
19 - Getting smaller
20 - Adding version information
21 - Continuous Integration

4. Understanding Command-Line Applications

22 - Using the command line
23 - Passing arguments
24 - Seeking help
25 - Pipes and redirects
26 - Signals

Conclusion

27 - Next steps