title: Golang Checking file extension not working
body: <p>I want to get a file path from the console and check if the file is a vm file.
  I wrote this code:</p>
  
  <pre><code>func main() {
  reader := bufio.NewReader(os.Stdin)
  fmt.Println("Enter the path of the vm file:")
  path, _ := reader.ReadString('\n')
  if filepath.Ext(path) != ".vm" {
      fmt.Println("Error! file must be vm file")
  }
  </code></pre>
  
  <p>but it's not working. I just started learn Go So please accept my apologies if this is a basic mistake.</p>