title: mv: cannot stat error
body: <p>mv: cannot stat error : No such file or directory error</p>
  
  <p>this is my error</p>
  
  <p>and this is my code</p>
  
  <pre><code>#!/bin/sh
  printf "change word from read \n"
  read a
  read b
  mv ${a} ${b}
  printf "${b}\n"
  </code></pre>
  
  <p>How can I solve it?</p>