lcase(1) was created for systems that lack tr(1). All it does is change the Upper/Lower Case of characters in a Text File.
If tr(1) is a better choice, but its command line can be a but hard to remember.
Compile Instructions are in the README File inside the tarball.
$Id: lcase.gmi,v 1.4 2023/10/17 15:30:20 jmccue Exp $