If I were to sell an entire website with all the scripts and the domain name, how would I do this without losing data? Basically, I want to learn how to transfer the scripts (Example: Wordpress and Vbulletin scripts) and the domain from my host/registrar to another without losing the data in exchange for money, obviously. Thanks in advance.
There are a few ways you could do it... If it's cPanel hosting, there's usually a transfer wizard to move an entire site from one cPanel host to another. Sometimes the buyer's web host would help with this part. Or, just give the buyer the username and password to access the site via cPanel or FTP. Then they can transfer the site as they prefer. Or backup the site into a .zip folder. Using WP as an example, you'd backup all the theme files along with your WP database. Then these could be added to a new web hosting account that has a fresh WP install (i.e. upload the theme and import the database through PHPMyAdmin.) And with the domain name, you can "push" the name. In Godaddy it's "account change" and in Namecheap I think it's "push" and it's free.