Anytime I’ve been running a perl based script on my leopard box I got this really irritating output with whatever else I was expecting:
perl: warning: Setting locale failed. perl: warning: Please check that your locale settings: LC_ALL = "En_US", LANG = (unset) are supported and installed on your system. perl: warning: Falling back to the standard locale ("C").
With a quick Google search I found an answer in this Rubify post. Basically the solution / fix is to make sure the following is set in either your ~/.profile or ~/.bashrc or ~/.cshrc
# This setting is for the new UTF-8 terminal support export LC_CTYPE=en_US.UTF-8 export LC_ALL=en_US.UTF-8