Listing installed packages by group

[kwick60073]

I am reviewing the installed packages on my systems. I would like to get a listing of the packages that are installed organized by group. Is there a tool that will allow this output to file? I can view this using yumex, but this is a little cumbersome since the project will take sometime.

I have 2 systems running Fedora Core 4. Also, I have some packages from non-Fedora repositories (dag, dries, etc...).

Thanks for you assistance,
Kenny

[nlkrio]

yum grouplist
the above shows you the groups
yum groupinfo groupname
shows you the packages