vim: how to call alias through the ':!' directive? [duplicate]

Question

Possible Duplicate:
Commands executed from vim are not recognizing bash command aliases

I've made an alias called "cache": alias cache="[shell command]"

Using vim, I'd like to call this alias through the ':!' directive, but I just can call "standard" commands like 'date' and so on?

How is it possible to make vim use my shell aliases?

Answer 1

Actually the suggested answer in the possible duplicate question didn't work for me. I currently use the following:

set shell=/bin/bash\ -i

It works fine.