Centos7安装及初始化

视频演示参考：https://www.bilibili.com/video/BV1K54y147ga/

1. 软件准备

1. Vmvare
2. XShell
3. XFtp
4. CentOS

​ http://mirrors.aliyun.com/centos/7.9.2009/isos/x86_64/CentOS-7-x86_64-DVD-2009.iso

2. Centos7安装过程演示

3. 基本配置

1. Yum更新

   yum update -y
   

2. Tab补全

   yum -y install bash-completion
   

3. Wget

   yum install -y wget
   

4. Vim

   yum install -y vim-enhanced
   

5. 网络工具

   yum install -y net-tools.x86_64
   

4. JDK安装及环境变量设置

1. 下载JDK或将提前下载好的安装文件传至/opt/software

2. 解压

   tar -zxvf jdk-8u191-linux-x64.tar.gz -C /opt/module
   

3. 修改/etc/profile，设置环境变量

   export JAVA_HOME=/opt/module/jdk1.8.0_191
   export JRE_HOME=${JAVA_HOME}/jre
   export CLASSPATH=.:${JAVA_HOME}/lib:${JRE_HOME}/lib
   export PATH=${JAVA_HOME}/bin:$PATH
   

4. 刷新配置

   source /etc/profile
   

5. 验证

   java -version