When I just started to read planet.debian.org today, I realized that Russel Coker was speaking of an unknown tool to print the UUID, but that Debian version doesn't seem to do that.
broken font rendering
It's called fle apparently.
Sadly, an apt-cache showed that there's no package named fle. Then I realized that he was actually speaking of the good old tool called file - with an I between F and L!
Really, I wish the font rendering will improve in Lenny as this was on Etch... *sigh*