shellscript which forwards filesystem inotify events to webpage [inotify-tools + websocat]

watch.sh

#!/bin/sh

echo '
  <h1>/tmp watcher</h1>

  <pre>
    try:   $ touch /tmp/FOO
           $ chmod +x /tmp/FOO
           $ xattr -s foo -V bar /tmp/FOO
  </pre>

  <pre id="log">
output
======
  </pre>

  <script>
  var ws = new WebSocket("ws://127.0.0.1:'$PORT'/");

  ws.onmessage = function(event) {
    document.querySelector("#log").innerHTML += "\n"+event.data;
  };
  </script>
' > /tmp/index.html

echo "point your browser to: https://127.0.0.1:9090"

inotifywait -m /tmp | websocat -E -s 9090 -F /:text/html:/tmp/index.html