Ubuntu Linux: Start / Restart / Stop Nginx Web Server

How do I restart / stop / start the nginx web server under Ubuntu Linux operating systems?

The nginx web server can be restarted using any one of the following command line syntax:

sudo service nginx restart

sudo /etc/init.d/nginx restart

The same commands can be used to start / stop the nginx server:

 
sudo service nginx start
sudo service nginx stop
sudo service nginx restart

 
sudo /etc/init.d/nginx start
sudo /etc/init.d/nginx stop
sudo /etc/init.d/nginx restart

It is also possible to use the following syntax:
sudo nginx -s reload

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