title: How to find the unusual character ' using POSIX in bash?
body: <p>here are some names:</p>
  <p>El Peulo'Pasa, Van O'Driscoll, Mike_Willam</p>
  <p>how to filter the name contains ', using POSIX in bash by command find?</p>
  <p>if I use the following command,</p>
  <pre><code>find . -maxdepth 1 -mindepth 1 -type d -regex '^.*[']*$' -print
  </code></pre>
  <p>Bash runs into a problem because the syntax ' will automatically convert the input to string</p>