How to open utfb8 in linux env

set env below:

LC_ALL=en_US.UTF-8
LANG=en_US.UTF-8
LANGUAGE=en_US.UTF-8

 

For csh:

Add line below to  ~/.cshrc

setenv LC_ALL en_US.UTF-8
setenv LANG en_US.UTF-8
setenv LANGUAGE en_US.UTF-8