AppleScript variant of find(1) How would I write the following as an AppleScript command without the use of bash scripting?

find / -file foo.txt


I might have the bash syntax wrong, but I want to search from the root of the drive for a specific filename. 

I tried drawing multiple efforts from things around on the net, but I just need a simple "find" solution.
You definitively have the find syntax wrong here :-) 

To search for a file across the builtin disk use

find -x / -name filename.ext -print


If you want to search across all disks (including USB drives etc) use

find / -name filename.ext -print