How can I link a document that has been already stored in the site from the text you have edited in the rich editor. I tried with the link button but nothing.  For example:

I want to publish a text in may page, but I don’t want to show all of it because it is very big. I just want to show four lines and a link which will allow the final user to see the whole document if he want to. What is the sintaxis of the link in order to access an internal document?

Thanks in advance.

Thanks SuperSKa but..

Unfortunately the blog module is not available in my system and I am not the administrator of the portal so I have to find a solution with Text/Html module.

I know that I have to paste part of the text that I want to show and that there must be a link to the entire document already stored somewhere, but what the sin taxis of the standard texteditor link button that comes with dnn to access that file is. It is one of the most common resources in a normal web page therefore the solution must be there somewhere.

I Know I can solve this problem with the link module using the title property but it seems to me that is not the natural way for such an normal procedure..