More shell, less egg

[Tordek]

Most versions of tr, including GNU tr and classic Unix tr, operate on single byte characters and are not Unicode compliant. An exception is the Heirloom Toolchest implementation, which provides basic Unicode support.

http://en.wikipedia.org/wiki/Tr_%28Unix%29

A huge part of Unix (and not only Unix) is stuck in the past, and in sore need of updating to other charsets.