My favorite configuration is just LC_CTYPE=en_US.UTF-8 and unsetting all other LC_* variables and unsetting LANG as well. That way you have full UTF-8 support,

My favorite configuration is just LC_CTYPE=en_US.UTF-8 and unsetting all other LC_* variables and unsetting LANG as well. That way you have full UTF-8 support, except ls(1) will sort the files as I want with uppercase coming before lowercase.