Getting Started with Go: Hello World to Production
Build your first Go binary by running `go build hello.go` and execute the resulting executable to confirm output.
Create a file hello.go with the provided code, run `go build hello.go`, then execute the generated binary to see 'Hello world' output.
Summary
The article walks through installing Go on Linux and Windows, verifying the installation with `go version`, and writing a simple Hello World program. It explains Go’s package structure, import syntax, and the importance of capitalized print functions. The tutorial covers building the program with `go build`, running it with `go run`, and notes language rules such as double quotes for strings, braces on the same line as the function name, and that variables cannot be redeclared. The author demonstrates variable declaration, formatting with `fmt.Printf`, and the difference between `var` and short variable declaration. The article ends with a note of thanks to a mentor for guidance.
Key changes
- Install Go via binary package or installer
- Verify with `go version`
- Hello World program with package main and import fmt
- Build with `go build hello.go` to create executable
- Run with `go run hello.go`
- Print statements are case‑sensitive (Print, Println, Printf)
- Strings require double quotes, not single
- Braces must be on the same line as function name