.bashrc 

.profile

/etc/bashrc

/etc/profile

LANG="en_US.UTF-8"

LC_COLLATE='en_US.UTF-8"

LC_CTYPE="en_US.UTF-8"

LC_MESSAGES="en_US.UTF-8"

LC_MONETARY="en_US.UTF-8"

LC_NUMERIC="en_US.UTF-8"

LC_TIME="en_US.UTF-8"

LC_ALL="en_US.UTF-8"