Its working for me.[alpha@DESKTOP-RB97SA4 [/cygdrive/p/ProjectSidero/basic_memory/source/sidero/base/text/unicode$ rdmd --eval=$'import std; writeln(dirEntries(`.`, `*.d`, SpanMode.shallow));' [".\\casefold.d", ".\\casing.d", ".\\comparison.d", ".\\composing.d", ".\\defs.d", ".\\normalization.d", ".\\readonly.d", ".\\wordbreak."]
Check what directory it is running in by called getcwd. https://dlang.org/phobos/std_file.html#getcwd