export LANGUAGE=en_US.UTF-8
export LANG=en_US.UTF-8
export LC_ALL=en_US.UTF-8
locale-gen en_US.UTF-8
dpkg-reconfigure locales

查看当前系统语言环境

locale

编辑配置文件，将zh_US.UTF-8改为en_US.UTF-8，zh改为en

sudo nano /etc/default/locale

LANG="en_US.UTF-8"

LANGUAGE="en_US:en"

继续查看更改后的系统语言变量，如果出现下列错误，说明没安装en_US的local

qii@ubuntu:~$ locale

locale: Cannot set LC_CTYPE to default locale: No such file or directory

locale: Cannot set LC_MESSAGES to default locale: No such file or directory

locale: Cannot set LC_ALL to default locale: No such file or directory

LANG=en_US.UTF-8

LANGUAGE=en_US:en

LC_CTYPE="en_US.UTF-8"

LC_NUMERIC="en_US.UTF-8"

LC_TIME="en_US.UTF-8"

LC_COLLATE="en_US.UTF-8"

LC_MONETARY="en_US.UTF-8"

LC_MESSAGES="en_US.UTF-8"

LC_PAPER="en_US.UTF-8"

LC_NAME="en_US.UTF-8"

LC_ADDRESS="en_US.UTF-8"

LC_TELEPHONE="en_US.UTF-8"

LC_MEASUREMENT="en_US.UTF-8"

LC_IDENTIFICATION="en_US.UTF-8"

LC_ALL=

查看系统内安装的locale

qii@ubuntu:~$ locale -a

locale: Cannot set LC_CTYPE to default locale: No such file or directory

locale: Cannot set LC_MESSAGES to default locale: No such file or directory

locale: Cannot set LC_COLLATE to default locale: No such file or directory

C

POSIX

zh_CN.utf8

zh_SG.utf8

看吧，没装en_US.UTF-8 安装en_US.UTF-8

qii@ubuntu:~$ cd /usr/share/locales

qii@ubuntu:/usr/share/locales$ ls

install-language-pack  remove-language-pack

qii@ubuntu:/usr/share/locales$ sudo ./install-language-pack en_US

Generating locales...

  en_US.UTF-8... done

Generation complete.

dpkg-trigger: dpkg-trigger must be called from a maintainer script (or with a --by-package option)

查看，应该一切正常了。

qii@ubuntu:/usr/share/locales$ locale

LANG=en_US.UTF-8

LANGUAGE=en_US:en

LC_CTYPE="en_US.UTF-8"

LC_NUMERIC="en_US.UTF-8"

LC_TIME="en_US.UTF-8"

LC_COLLATE="en_US.UTF-8"

LC_MONETARY="en_US.UTF-8"

LC_MESSAGES="en_US.UTF-8"

LC_PAPER="en_US.UTF-8"

LC_NAME="en_US.UTF-8"

LC_ADDRESS="en_US.UTF-8"

LC_TELEPHONE="en_US.UTF-8"

LC_MEASUREMENT="en_US.UTF-8"

LC_IDENTIFICATION="en_US.UTF-8"

LC_ALL=