AMD Gpu driver installation

Hi
I install Elementary OS 5.1.3 Hera. I have AMD Radeon RX5700TX and I try to install drivers. I download "amdgpu-pro-20.10-1048554-ubuntu-18.04" driver packet and extract it. I try run "amdgpu-pro-install" but nothing happen. If I try install it with terminal I get "command not found"

What I do wrong?

 

https://amdgpu-install.readthedocs.io/en/latest/install-installing.html

Code (Text):

cd <path>
./amdgpu-install -y

Make sure that the script is set to executable first.

 

Hi
Thanks. I now I get
Unsupported DEB-based OS: /etc/os-release ID 'elementary'

 

Well, you have to dive into editing the script file.

The string "ubuntu" you can find in function os_release()