Locale issues in <tar>

[jaymax]

FreeBSD 10.2 ... i386

I am attempting to tar some directories containing many files with French, German and Greek character / symbolism in the their titles.
I am beset with multiple messages : such as => Can't translate pathname "..." to UTF-8
How do I correct this?

My locale settings are -

LANG=
LC_CTYPE="C"
LC_COLLATE="C"
LC_TIME="C"
LC_NUMERIC="C"
LC_MONETARY="C"
LC_MESSAGES="C"
LC_ALL=

And how do I change these if needed ?

 

[xavi]

And how do I change these if needed ?

Check out this link