What should I do if Linux displays garbled characters?

What should I do if Linux displays garbled characters?

Linux terminal displays garbled Chinese characters

Today, we will help our students solve the problem of garbled Chinese characters. This is a problem that worries domestic Linux users. Since most Linux distributions are mainly in English, and English is better than Chinese in terms of versatility and stability, and there are fewer strange bugs. Therefore, it is strongly recommended to use the English system.

We know that our operating system does not matter the Chinese version or the English version. Whether it is Windows or Linux, when the system is released, the whole world has the same kernel. Whether the system is presented to us in English or Chinese completely depends on it. for the language pack of your choice. People from different countries choose the language pack of their own country when installing and using it. The language in the application is not hard-coded. It calls the relevant language according to the system settings. Therefore, an application is written without modification. Users from different countries around the world can use it in their native language interface. This is the so-called internationalization, or i18n for short. This is also the development trend of future software.

So, if I install different language packs and different fonts in the system, how does the system determine the language interface I want and call the relevant fonts? What files and variables in the system control this?

Recommended: "Linux Tutorial"

You can use the locale command to view the character set used by default in the current system

# locale

Under RedHat/CentOS system , the file that records the default language used by the system is /etc/sysconfig/i18n. If the Chinese system is installed by default, the content of i18n is as follows:

LANG="zh_CN.UTF-8" 
SYSFONT="latarcyrheb-sun16" 
SUPPORTED="zh_CN.UTF-8:zh_CN:zh"

The LANG variable is the abbreviation of language, which has a slight English foundation. Users can tell at a glance that this variable determines the default language of the system, that is, the system menu, the toolbar language of the program, the default language of the input method, etc. SYSFONT is the abbreviation of system font, which determines which font the system uses by default. The SUPPORTED variable determines the languages ​​supported by the system, that is, the languages ​​the system can display. It should be noted that since computers originated in English-speaking countries, no matter what you set these variables to, English is always supported by default, and no matter what font is used, English fonts are always included.

So how to display Chinese?

1. The system must have a Chinese language pack installed.

# yum -y groupinstall chinese-support

2. Just having a language pack is not enough. We have to set the corresponding character set.

## 临时生效 
# export LANG="zh_CN.UTF-8"    # 设置为中文 
# export LANG="en_US.UTF-8"    # 设置为英文，我比较喜欢这样 export 
  
## 永久生效， 编辑/etc/sysconfig/i18n（最好reboot一下） 
LANG="zh_CN.UTF-8"
  
## 或者，编辑 /etc/profile配置文件，添加如下一行 
export LANG="zh_CN.UTF-8"
# 重新载入 
# . /etc/profile 
  
## 查看当前的字符集 
# echo $LANG

Okay, after The above settings should be able to display Chinese on the terminal.

3. SSH remote terminal is garbled

If the SSH terminal is still garbled, then we also need to set the encoding of the terminal software.

Xshell:

SecureCRT:

4. What should I do if the terminal is still garbled in Chinese? ?

Set up the SSH software and select a font that supports Chinese.

Linux Windows need to modify files between each other, and then the files will be garbled.

After copying, I often find that the Chinese characters are garbled. . The reason is that the default file format in Windows is GBK (gb2312), while Linux is generally UTF-8. The more cumbersome method is to use a program to convert the content into UTF-8 encoding format under Windows, but it is quite troublesome, and it needs to be converted once a file is encountered. Let's introduce how to solve this problem once and for all in Linux, check the encoding of the file and how to convert the file encoding.

In order to avoid these problems, the best way is to uniformly encode. For text files, they are all saved in UTF8 format. Do not use word or notepad under windows. Sublime text or notepad is recommended.

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