Linux 设置linux的时区setlinuxtimezone和locales

很多时候，你的LINUX时间显示的不对，不是时间不对，而是时区错了。  (most of the time, the root cause you found the time is not correct is that your linux is not setup with the correct timezone) 

解决办法： for short:   dpkg-reconfigure tzdata

refer to:  http://www.christopherirish.com/2012/03/21/how-to-set-the-timezone-on-ubuntu-server/

You can check your current timezone by just running

$ date
Thu Mar 21 18:02:49 MST 2012

Or checking the timezone file at

$ more /etc/timezone
US/Arizona

So to change it just run

$ sudo dpkg-reconfigure tzdata
And follow on screen instructions. Easy.

修改 locale的办法

: 参考:  https://www.douban.com/note/362250557/

1. 先看该系统中的所有有效locale: 

$ locale -a  

$ locale -a
C
C.UTF-8
POSIX
en_US
en_US.iso88591
en_US.utf8

所以,我们要生成它:

$ sudo locale-gen zh_CN.UTF-8
Generating locales...
  zh_CN.UTF-8... done
Generation complete.

这个时候,再次的 $ locale -a

$ locale -a
C
C.UTF-8
en_US
en_US.iso88591
en_US.utf8
POSIX
zh_CN.utf8

2.  $  sudo locale-gen en_US en_US.UTF-8
Generating locales...
en_US.ISO-8859-1... done
en_US.UTF-8... up-to-date
Generation complete.

3.  $ sudo dpkg-reconfigure locales

4.  $ sudo vim /etc/default/locale (下面的东东可以去掉?  2018-4-18 不确定. 保证执行第五点就可以了)

  1 # Created by cloud-init v. 0.7.5 on Mon, 12 Feb 2018 03:28:35 +0000
  2 LANG="en_US.UTF-8"
  3 LANGUAGE="en_US:en"

5. 在 ~/.bashrc中, 添加下面的变量(解决git log无法显示中文的问题 )

export LESSCHARSET=utf-8
export LANG=zh_CN.UTF-8
export LANGUAGE=zh_CN.UTF-8
export LC_ALL=zh_CN.UTF-8