he main problem now is that the script uses Unix pathnames and calls Unix utilities like sed, rm, etc.
I guess I'll just have to load them all, and gradually approach the Unix environment that the script expects. Ah, the joys of taking over someone else's code.
Right, you need to get fileutils and some other packages.
In fact, if you have the bandwidth you're probably best off by installing the whole GG.
These GG nix cmds handle nix pathnames automagic. You probably need to add some assigns or tune the makefiles though.