Mac OS X: How to permanently change the prompt (value of PS1) in the shell of emacs client?

Question

I have start emacs as daemon through (emacs --daemon). I then launch the client (emacsclient -c) and use its shell mode through (M-x shell RET). However the prompt starts with:

bash-3.2$

I have changed the value of PS1 by export PS1="\w\$ " in .bash_profile. So any idea how to change the value of PS1 in the shell of emacsclient?

Edit: or an equal question is: where does emacsclient get environment variables, e.g. $PATH, $PS1 ...? Knowing this will solve my question.

Answer 1

.bash_profile won't be executed. Put the PS1 inside .bashrc