How to upload a script onto CentOS?

Hi there, I recently bought a script from someone but the support was terrible, he didn’t provide any after-sales support. So here I am requesting to any of the experts.
Basically, I want to upload a script using FileZilla onto a CentOS server, and linking it to HitLeap directory. Anyone can guide me to the right path??
Thanks in advance!!
Answer #1
What kind of script?
You basically have to remote upload it in your desired folder and run the installation. The precise installation instructions will be known once we know what type of script it is.
Answer #2
It’s an index.php script. Basically, HitLeap will be put on the CentOS VPS and then link it to the script. So as to automate the the viewing from HitLeap to a certain website. Thanks man!