Host File & iTunes Problem

So far i am loving lion. I have two problems though,
first is that i want to open up my host files with this command in terminal and it isn't working

How do i open up the host files like i did in snow leopard? That command worked in sl.

Also, i had backed up all my music in iTunes, by going to file library and burn to disc or something like that. I put my first dvd in and it says would you like to restore blah blah, i hit restore and after disc 1 it says something about click ok to continue and then i insert disc 2 and hit okay a bar shows and just goes and doesn't stop. What is the best way to restore my music back to my library??

When i open up text edit if i right click on it, it shows a list of opened text edit files, how can i get to how it was in sl where i just open one and then i quit and that's it.

Thanks Guys

 

okay thanks gokyu, is there another way or this is the way from now on??
thanks