How do I remove newlines from a text file?

Question

I have the following data, and I need to put it all into one line.

I have this:

22791

;

14336

;

22821

;

34653

;

21491

;

25522

;

33238

;
         


        

Answer 1

Nerd fact: use ASCII instead.

tr -d '\012' < filename.extension   

(Edited cause i didn't see the friggin' answer that had same solution, only difference was that mine had ASCII)