How to get Maya AdskLicensingService working on Ubuntu?

Following this Autodesk tutorial, I'm running into a road block where enabling Autodesk Licensing Service service fails:

systemctl enable adsklicensing –-quiet
Failed to enable unit: Unit file \xe2\x80\x93-quiet.service does not exist.

This post quotes the exact same issue, but --quiet renders the same error.

Play by play:

This is OK:

sudo apt-get install ./adsklicensing9.2.1.2399_0-1_amd64.deb

But this doesn't know about the service:

systemctl status adsklicensing

So trying the next step, this doesn't exist:

/opt/Autodesk/AdskLicensingService --run

So I found it in:

/opt/Autodesk/AdskLicensing/9.2.1.2399/AdskLicensingService/AdskLicensingService

but it just sits there and nothing happens:

/opt/Autodesk/AdskLicensing/9.2.1.2399/AdskLicensingService/AdskLicensingService --run

So I do the next steps they suggest:

sudo getent group adsklic &>/dev/null || sudo groupadd adsklic
sudo id -u adsklic &>/dev/null || sudo useradd -M -r -g adsklic adsklic -d / -s /usr/sbin/nologin  
sudo ln -sf /opt/Autodesk/AdskLicensing/9.2.1.2399/AdskLicensingService/AdskLicensingService /usr/bin/AdskLicensingService
sudo mkdir /usr/lib/systemd/system
sudo cp -f /opt/Autodesk/AdskLicensing/9.2.1.2399/AdskLicensingService/adsklicensing.el7.service /usr/lib/systemd/system/adsklicensing.service
sudo chmod 644 /usr/lib/systemd/system/adsklicensing.service
sudo systemctl daemon-reload
sudo systemctl enable adsklicensing –quiet
sudo systemctl start adsklicensing

But the second last one:

sudo systemctl enable adsklicensing –quiet (or --quiet)

says:

Failed to enable unit: Unit file \xe2\x80\x93quiet.service does not exist.