前言

本笔记基于 Ubuntu20.04

配置阿里云镜像

更改之前确保已经安装好了vim，默认版本是没有安装的，不然在更改期间再进行安装会失败； 跟着步骤走就可以了

cd /etc/apt/
mv sources.list sources.list.back
rm -rf sources.list
# 内容如下
vim sources.list

文件替换内容如下

deb http://mirrors.aliyun.com/ubuntu/ trusty main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ trusty-security main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ trusty-updates main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ trusty-proposed main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ trusty-backports main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ trusty main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ trusty-security main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ trusty-updates main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ trusty-proposed main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ trusty-backports main restricted universe multiverse

最后更新

sudo apt-get update

设置root用户密码

# 设置root密码
sudo passwd root

# 切换普通用户
su {
          
   username}

安装jdk

sudo apt update
sudo apt install openjdk-8-jdk
java -version

解压文件

tar -xvf absl.tar