sudo nano /etc/default/locale
LC_ALL=en_US.UTF-8
LANG=en_US.UTF-8
LC_TYPE=en_US.UTF-8
or
export LANGUAGE="en_US.UTF-8"
add
LANGUAGE=en_US.UTF-8LC_ALL=en_US.UTF-8
LANG=en_US.UTF-8
LC_TYPE=en_US.UTF-8
or
export LANGUAGE="en_US.UTF-8"
echo 'LANGUAGE="en_US.UTF-8"' >> /etc/default/locale
echo 'LC_ALL="en_US.UTF-8"' >> /etc/default/locale