Perhaps: Regarding "...these are ! and U..." As in "not equal to proprietary" (UNIX=$? unix=free?)
Or in other words, "free" (I'm a newbie in the Unix-world so my apologies if I'm confusing free vs $ with UNIX vs unix/unix-like.) [demime 1.01d removed an attachment of type APPLICATION/DEFANGED which had a name of Message 367.21814DEFANGED-eml]
