简单来说，就行修改/etc/default/locale文件，设置语言位UTF-8，如果没有这个语言，就执行命令locale-gen en_US.UTF-8进行安装，没有即时生效的话就重启。

查看当前系统语言

locale

修改系统语言

例如修改语言为英文

1vi /etc/default/locale
2LANG="en_US.UTF-8"
3LANGUAGE="en_US:en"

重启后，再次查看系统语言

1locale
2
3locale: Cannot set LC_CTYPE to default locale: No such file or directory
4locale: Cannot set LC_MESSAGES to default locale: No such file or directory
5locale: Cannot set LC_ALL to default locale: No such file or directory
6LANG=en_US.UTF-8
7LANGUAGE=en_US:en
8LC_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

1locale -a 
2
3locale: Cannot set LC_CTYPE to default locale: No such file or directory
4locale: Cannot set LC_MESSAGES to default locale: No such file or directory
5locale: Cannot set LC_COLLATE to default locale: No such file or directory
6C
7POSIX
8zh_CN.utf8
9zh_SG.utf8

没装en_US.UTF-8

locale-gen en_US.UTF-8

再次查看

1LANG=en_US.UTF-8
2LANGUAGE=en_US:en
3LC_CTYPE="en_US.UTF-8"
4LC_NUMERIC="en_US.UTF-8"
5LC_TIME="en_US.UTF-8"
6LC_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=