nerdtree_term is a NERDTree plugin that adds a menu item to open the selected folder in Mac OS X Terminal. (i.e. open a shell window and cd to that folder)
Run the following commands in a shell:
cd ~/.vim/bundle git clone https://github.com/mortonfox/nerdtree-term.git
Add the following to your vimrc:
terminal_menu_item.vim file to
In the NERDTree window, select the desired folder and then
t to open the Terminal session.