Hi guys, I'm kind of new at this. My problem is:
-I have Linux Mint 14 KDE, and I use Terminator as terminal.
-I need to know 2 things:
1)I already know how to change the bash text in prompt, ex:

user@userPC ~/Documents $ PS1="ß "
ß

But my problem is that after I exit my terminal, it stays the same as before... I want to know how to make a definitive change in PS1, so whaen i close and open again terminal it stays like i told him to.

2)As you see, my starting dir is Documents.. I want to change it to other dir when I open the terminal.

Thank you for taking consideration on my request for help.

edit the PS1 variable in ~/.bashrc

Sorry man, but I don't know what is ~/.bashrc
How can I get there?

.bashrc is a file in your home directory (~). Edit it with whatever text editor you like, and put your PS1 command inside.

Thank you
I was hoping to get answer to my second question too. My terminal always starts at documents dir. How can I change the start dir when I open my terminal?

You can always throw a "cd wherever" into .bashrc.

That script is sourced every time a terminal opens. Anything that you want to automatically happen when you open a terminal can be put there.

Or many terminal emulators let you specify the cwd on the command line when they're called. You can append this argument to whatever you're using to launch your terminal (menu option, desktop button, keyboard shortcut) to pass it in.

For example, konsole has the "--workdir <dir>" option. So you could just change your launcher so that instead of running "konsole" when you click it, it runs "konsole --workdir /home/user". gnome-terminal has a similar option "--working-directory=DIRNAME". Terminator probably has one too.