inital commit

.gitignore

@@ -0,0 +1 @@
+*.exe

go.mod

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+module gobook/wordcount
+
+go 1.25.0

main.go

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+package main
+
+import (
+	"bufio"
+	"fmt"
+	"log"
+	"os"
+	"strings"
+)
+
+func main() {
+	if len(os.Args) < 2 {
+		log.Println("need to provide filename!")
+		os.Exit(1)
+	}
+
+	file, err := os.Open(os.Args[1])
+	if err != nil {
+		os.Exit(1)
+	}
+	defer file.Close()
+
+	scanner := bufio.NewScanner(file)
+
+	var wordCount int
+	for scanner.Scan() {
+		// This is done for each line of the file.
+		words := strings.Fields(scanner.Text())
+		wordCount += len(words)
+	}
+
+	if scanner.Err() != nil {
+		log.Println(scanner.Err())
+		os.Exit(1)
+	}
+
+	fmt.Printf("Found %d words", wordCount)
+}