CentOS

更改yum源

• 华为镜像站找到我们对应的操作系统版本：https://repo.huaweicloud.com/repository/conf/
• 找到对应的.repo文件，下载后上传到服务器对应的/etc/yum.repos.d/目录
• 或者直接参考我这里

## 备份
cp -r /etc/yum.repos.d /etc/yum.repos.d.bak

cd /etc/yum.repos.d/
vi CentOS-Base.repo ## 创建文件，加入相关配置
## =================
## 清除系统所有的yum缓存
yum clean all
## 生成新的yum缓存
yum makecache
## 更新源
yum repolist

• 添加相关配置

  # CentOS-Base.repo
  #
  # The mirror system uses the connecting IP address of the client and the
  # update status of each mirror to pick mirrors that are updated to and
  # geographically close to the client.  You should use this for CentOS updates
  # unless you are manually picking other mirrors.
  #
  # If the mirrorlist= does not work for you, as a fall back you can try the 
  # remarked out baseurl= line instead.
  #
  #
  
  [base]
  name=CentOS-$releasever - Base
  #mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=os&infra=$infra
  #baseurl=http://mirror.centos.org/centos/$releasever/os/$basearch/
  #baseurl=http://vault.centos.org/7.9.2009/x86_64/os/
  baseurl=http://vault.centos.org/7.9.2009/os/$basearch/
  gpgcheck=1
  gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7
  
  #released updates 
  [updates]
  name=CentOS-$releasever - Updates
  #mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=updates&infra=$infra
  #baseurl=http://mirror.centos.org/centos/$releasever/updates/$basearch/
  #baseurl=http://vault.centos.org/7.9.2009/x86_64/os/
  baseurl=http://vault.centos.org/7.9.2009/updates/$basearch/
  gpgcheck=1
  gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7
  
  #additional packages that may be useful
  [extras]
  name=CentOS-$releasever - Extras
  #mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=extras&infra=$infra
  #$baseurl=http://mirror.centos.org/centos/$releasever/extras/$basearch/
  #baseurl=http://vault.centos.org/7.9.2009/x86_64/os/
  baseurl=http://vault.centos.org/7.9.2009/extras/$basearch/
  gpgcheck=1
  gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7
  
  #additional packages that extend functionality of existing packages
  [centosplus]
  name=CentOS-$releasever - Plus
  #mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=centosplus&infra=$infra
  #baseurl=http://mirror.centos.org/centos/$releasever/centosplus/$basearch/
  #baseurl=http://vault.centos.org/7.9.2009/x86_64/os/
  baseurl=http://vault.centos.org/7.9.2009/centosplus/$basearch/
  gpgcheck=1
  enabled=0
  gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7
  

  阿里

  [base]
  name=CentOS-$releasever - Base - 阿里云
  failovermethod=priority
  baseurl=http://mirrors.aliyun.com/centos/$releasever/os/$basearch/
  gpgcheck=0
  enabled=1
  
  [updates]
  name=CentOS-$releasever - Updates - 阿里云
  failovermethod=priority
  baseurl=http://mirrors.aliyun.com/centos/$releasever/updates/$basearch/
  gpgcheck=0
  enabled=1
  
  # 可根据需要添加其他仓库如 epel 等
  

恢复出厂设置

字符集

查看

第一种：

echo $LANG
###########
zh_CN.UTF-8

第二种：

env |grep LANG
############
LANG=zh_CN.UTF-8

第三种：

export |grep LANG
#############
declare -x LANG="zh_CN.UTF-8"

第四种：

locale

###########
LANG=zh_CN.UTF-8
LC_CTYPE="zh_CN.UTF-8"
LC_NUMERIC="zh_CN.UTF-8"
LC_TIME="zh_CN.UTF-8"
LC_COLLATE="zh_CN.UTF-8"
LC_MONETARY="zh_CN.UTF-8"
LC_MESSAGES="zh_CN.UTF-8"
LC_PAPER="zh_CN.UTF-8"
LC_NAME="zh_CN.UTF-8"
LC_ADDRESS="zh_CN.UTF-8"
LC_TELEPHONE="zh_CN.UTF-8"
LC_MEASUREMENT="zh_CN.UTF-8"
LC_IDENTIFICATION="zh_CN.UTF-8"
LC_ALL=

修改

方法一：直接设置变量的方式修改

export LANG=zh_CN.UTF-8

方法二：

vim /etc/sysconfig/i18n
#######
LANG="zh_CN.UTF-8"
#######
source /etc/sysconfig/i18n　

CentOS7 xshell 连接系统显示中文乱码解决

## 临时
export LANG=zh_CN.gbk
## 永久
vim /etc/profile
########## 在文件最后添加
export LANG=zh_CN.gbk　　
##########
source /etc/profile