package main import ( "fmt" "log" "os/exec" "sync/atomic" "time" ) func main() { cmd := exec.Command("go", "version") err := cmd.Start() if err != nil { log.Fatalf("cmd.Start() failed with '%s'\n", err) } var timedOut int32 timeout := 1 * time.Millisecond stopTimer := time.AfterFunc(timeout, func() { cmd.Process.Kill() atomic.StoreInt32(&timedOut, 1) }) err = cmd.Wait() stopTimer.Stop() didTimeout := atomic.LoadInt32(&timedOut) != 0 fmt.Printf("didTimeout: %v, err: %v\n", didTimeout, err) }