Hello, could anyone help with this?
I uploaded the script to /public_html/my shopname.com. I got the right command from my hosting company. They say it should be:
/usr/bin/php -q /home/my username/public_html/myshopname.com/currency_update.php and I have used wrong path. Yes, I used just '/', so I corrected it to: /public_html/my shopname.com/currency_update.php.

And now I get messages:
PHP Warning:
require_once(/public_html/myshopname.com/currency_update.phpincludes/configure.php)
[<a href='function.require-once'>function.require-once</a>]: failed to open stream:
No such file or directory in
/home/myusername/public_html/myshopname.com/currency_update.php on line 20
<br />
<b>Warning</b>:
require_once(/public_html/myshopname.com/currency_update.phpincludes/configure.php)
[<a href='function.require-once'>function.require-once</a>]: failed to open stream:
No such file or directory in
<b>/home/myusername/public_html/myshopname.com/currency_update.php</b> on line
<b>20</b><br />
PHP Fatal error: require_once() [<a href='function.require'>function.require</a>]:
Failed opening required
'/public_html/myshopname.com/currency_update.phpincludes/configure.php'
(include_path='.:/usr/lib/php:/usr/local/lib/php') in
/home/myusername/public_html/myshopname.com/currency_update.php on line 20
<br />
<b>Fatal error</b>: require_once() [<a
href='function.require'>function.require</a>]: Failed opening required
'/public_html/myshopname.com/currency_update.phpincludes/configure.php'
(include_path='.:/usr/lib/php:/usr/local/lib/php') in
<b>/home/myusername/public_html/myshopname.com/currency_update.php</b> on line
<b>20</b><br />

What does it mean? What should I change?
Any help, please