How to Read User Input in Go from Stdin

Core

2026-04-17T12:05:42+00:00

Read user input from stdin in Go using bufio.Scanner to process lines until EOF.

Use bufio.Scanner to read lines from os.Stdin in a loop until input ends. This approach handles buffering automatically and stops cleanly on EOF.

package main

import (
	"bufio"
	"fmt"
	"os"
)

func main() {
	scanner := bufio.NewScanner(os.Stdin)
	for scanner.Scan() {
		fmt.Println(scanner.Text())
	}
	if err := scanner.Err(); err != nil {
		fmt.Fprintln(os.Stderr, "error:", err)
	}
}