====== Path Activation Beispiel "Die ultimative Maschine" ======

  systemctl edit --full --force paac.service

<file txt /etc/systemd/system/paac.service>
[Unit]
Description=Path Activation Service

[Service]
Type=oneshot
ExecStart=sh -c 'for f in /tmp/paac/*; do echo "lösche $f: $(cat $f)"; rm "$f"; done'
</file>

  systemctl edit --full --force paac.path

<file txt /etc/systemd/system/paac.path>
[Unit]
Description=Demonstrate Path Activation

[Path]
MakeDirectory=true
PathChanged=/tmp/paac

[Install]
WantedBy=default.target

</file>

  systemctl start paac.path

==== Ausprobieren =====
  echo test > /tmp/paac/file
  journalctl -fu paac.service