Accessing Controller with CRON

Check your letter case of filename, folder name and classname.
Tools.php
class Tools

Thank you all so much for you help.

To ensure I have my paths, folder and file names correct, even the correct case, I have run the followingb tests.

I created a very simple php file: test.php

PHP Code:

<?php

echo "I am at /home/my-app/app/Controllers/test.php"; 


I updated my Cron command to

/usr/bin/php /home/my-app/app/Controllers/test.php >> /home/my-app/app/Controllers/logfile.php

As expected this worked well, the cron job run correctly output =I am at /home/my-app/app/Controllers/test.php

Next I amended test.php using the structure of a file that works in the application.

PHP Code:

<?php namespace App\Controllers;

use CodeIgniter\Controller;
use CodeIgniter\Database\Query;
use App\Controllers\BaseController;

class test extends BaseController {
 
     public function index() {
     echo "I am at /home/my-app/app/Controllers/test.php";
     die();
     }
} 


I left my Cron command unchanged

/usr/bin/php /home/my-app/app/Controllers/test.php >> /home/my-app/app/Controllers/logfile.php

As expected this worked well, the cron job run correctly output = 500 Internal Server Error
The Cron found the file, but as expected the file did not execute correctly

Then I changed my Cron command to (as described in the Ci4 user manual
/usr/bin/php /home/my-app/mydonain.co.uk/index.php test >> /home/my-app/app/Controllers/logfile.php

This did NOT work well, the cron job run could not find the file and output = Status: 404 Not Found

I also tried the following commands
/usr/bin/php /home/my-app/mydonain.co.uk/index.php Controllers test >> /home/my-app/app/Controllers/logfile.php
/usr/bin/php /home/my-app/mydonain.co.uk/index.php app Controllers test >> /home/my-app/app/Controllers/logfile.php
/usr/bin/php /home/my-app/mydonain.co.uk/index.php my-app app Controllers test >> /home/my-app/app/Controllers/logfile.php
/usr/bin/php /home/my-app/mydonain.co.uk/index.php home my-app app Controllers test >> /home/my-app/app/Controllers/logfile.php
/usr/bin/php /home/my-app/mydonain.co.uk/index.php /home my-app app Controllers test >> /home/my-app/app/Controllers/logfile.php

All failed with output = Status: 404 Not Found

So as per the manual, I set up a route (in common with all the other routes in my application)

PHP Code:

$routes->add('testing', 'test::index'); 


This time my Cron command read
/usr/bin/php /home/my-app/mydonain.co.uk/index.php testing index >> /home/my-app/app/Controllers/logfile.php

Again this failed with output = Status: 404 Not Found

It would appear that the Cron is expecting the target file to be in the /home/my-app/mydonain.co.uk/ folder ???

Hmmmmmmm.....

To use a sporting parlance, I feel "snookered".