package main import ( "bytes" "fmt" "log" "os/exec" ) func main() { var stdout, stderr bytes.Buffer cmd := exec.Command("go", "version") cmd.Stdout = &stdout cmd.Stderr = &stderr err := cmd.Start() if err != nil { log.Fatalf("cmd.Start() failed with '%s'\n", err) } err = cmd.Wait() if err != nil { log.Fatalf("cmd.Wait() failed with '%s'\n", err) } out := append(stdout.Bytes(), stderr.Bytes()...) fmt.Printf("Output:\n%s\n", string(out)) }