I'm pretty new to Linux, and messed around with it for a while and when I wanted to get serious... I uninstalled it,and reinstalled it. It's not life changing but I want to get rid of the -old at the end of the machines name.
I google and bing'd it and ended up following some tutorials for changing and removing user names. Did not help. I think this will be a good learning opportunity and want to understand how the machine functions.
So I want it to go from UserName@Machine-old:~$ to... UserName@machine:$
let me know, if you can also explain a little of whats happening that would be helpful.