LC_ALL unset解决方法

sudo locale-gen en_US en_US.UTF-8
dpkg -reconfigure locales

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

locale

export LANGUAGE=en_US.UTF-8

export LC_ALL=ex_US.UTF-8

locale

export LC_ALL="en_US.UTF-8" 

. ~/.bashrc