xfmtype(1) on Linux
The text 6639b55c4e8c, as Debian 7 (Wheezy), Debian 6.0 (Squeeze), Debian 5.0 (Lenny), Debian 4.0 (Etch) shipped it. The page shows this text now.
xfm file type tester
Flags it lists
-
-f -
-m