I have problem with VIM command line when calling system commands. e.g. !ls, all command output colors aren't parsed by VIM. My system is Ubuntu 12.04 LTS with VIM 7.3.429 from Ubuntu repositories.

Is there any workaround for this problem?

EDIT:

My vimrc file

:!echo $TERM in VIM returns : dumb

EDIT2:

I found a simple workaround but it's not perfect

if [ "$VIM" ] && [ "$TERM" = "dumb" ] 
then 
    # For gvim's monochromatic :shell 
    PS1='\n\u@\h \w\n\$ ' 
    unalias ls 
    unalias grep 
fi 

(It's working on bash)