如何从stdout输出到golang中的字符串

Question

I have the following code which outputs data from stdout to a file:

cmd := exec.Command("ls","lh")
outfile, err := os.Create("./out.txt")
if err != nil {
    panic(err)
}
defer outfile.Close()

stdoutPipe, err := cmd.StdoutPipe()
if err != nil {
    panic(err)
}

writer := bufio.NewWriter(outfile)
defer writer.Flush()

err = cmd.Start()
if err != nil {
    panic(err)
}

go io.Copy(writer, stdoutPipe)
cmd.Wait()

I need to get the output from stdout into a string value instead of a file. How do I achieve that?

Is there perhaps another function that will allow me to change the io.Copy line to go io.Copy(myStringVariable, stdoutPipe) as I need to read the output of the command and apply some processing to it?

Thanks in advance

Answer 1

You don't need the pipe, writer, goroutine, etc. Just use Cmd.Output

out, err := exec.Command("ls","lh").Output()

You can convert the output []byte to a string as needed with string(out)