Scanner demo

cmdrunner.go

package main

import (
	"bufio"
	"fmt"
	"os/exec"
)

const xfile = "/home/nelsk/dev/go/src/ticker/ticker"

func main() {
	cmd := exec.Command(xfile)
	cmd2 := exec.Command(xfile)
	readCloser, _ := cmd.StdoutPipe()
	scanner := bufio.NewScanner(readCloser)

	readCloser2, _ := cmd2.StdoutPipe()
	scanner2 := bufio.NewScanner(readCloser2)

	cmd.Start()
	cmd2.Start()

	go func() {
		for scanner.Scan() {
			fmt.Println(scanner.Text())
		}
	}()

	fmt.Println("Waiting")

	go func() {
		for scanner2.Scan() {
			fmt.Println(scanner2.Text())
		}
	}()

	cmd.Wait()
	cmd2.Wait()
}

ticker.go

package main

import (
	"fmt"
	"time"
)

func main() {
	counter := 0
	for {
		counter++
		fmt.Printf("Ticker %d\n", counter)
		if counter == 5 {
			break
		}
		time.Sleep(time.Duration(500) * time.Millisecond)
	}

	fmt.Println("done.")
}