Installation of CENTOS 6x

Hello, sorry I’m new, I’m performing the installation on a dedicated server with centos 6x, I now install everything and are in the section where I have to conclude with cd / root / letsencrypt
./letsencrypt-auto --text --agree-tos --email certonly --renew-by-default --webroot --webroot-path / home / cPanelUser / public_html / - d - d

I know that I need to enter my email peràò I wonder should I replace with the domain names that I intend to install the script? Or in this case, enter the userid root domain and leaving the rest? Thank you

Yes, should be replaced by your own domain. And should also be replaced.

You may have a try for my bash client:
It’s easy to use.