title: Issue while installing wiki js
body: <p>I have been trying to install Wiki js with Apache 2</p>
  <p>while executing command:</p>
  <pre><code>curl -sSo- https://wiki.js.org/install.sh | bash
  </code></pre>
  <p>got this error:</p>
  <pre><code>bash: line 1: Redirecting: command not found
  </code></pre>
  <p>How to avoid this and execute the command?</p>