CLI Tools

Packaging and Distributing Go CLI Tools

Package and distribute Go CLI tools — cross-platform builds with ldflags version injection, goreleaser automation, checksums, Homebrew formulas, go install, Docker multi-stage …

Building CLI Tools with Cobra in Go

Master the Cobra framework for Go CLI tools — command structure, persistent and local flags, RunE error handling, argument validators, Viper configuration integration, shell …

Building Interactive CLI Applications in Go

Build interactive CLI applications in Go — reading user input with bufio, secure password input with golang.org/x/term, multi-select menus, input validation, progress indicators, …

Command-Line Parsing and Flags in Go

Master Go's flag package — defining flags, custom flag types, subcommands, environment variable fallback, validation patterns, and when to reach for Cobra instead.

File System Operations in Go

Master file I/O in Go — reading and writing files with os and bufio, walking directory trees with filepath.WalkDir, atomic writes, temp files, file watching, and path safety for …

Shell Integration and Scripting in Go

Learn how to run shell commands, execute scripts, manage processes, and build cross-platform CLI tools in Go. Covers os/exec, command piping, environment management, and shell …

Testing CLI Applications in Go

Master testing Go CLI applications — testing command handlers with Cobra, capturing stdout/stderr, injecting dependencies, golden file tests, integration tests with exec.Command, …