How do we start another golang app?

[Anderson]

There are two apps. How do you just start the file two?

[Nykeriab]

You're gonna need a os/exec.

Run starts the commandu and waits for her to end.

Starts and doesn't wait until you call Wait.

https://golang.org/pkg/os/exec/#Cmd.Run

package main
import (

"bytes"

"fmt"

"log"

"os/exec"

"strings"

)
func main() {

cmd := exec.Command("tr", "a-z", "A-Z")

cmd.Stdin = strings.NewReader("some input")

var out bytes.Buffer

cmd.Stdout = &out

err := cmd.Run()

if err != nil {

log.Fatal(err)

}

fmt.Printf("in all caps: %q\n", out.String())

}