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cd /etc/yum.repos.d/ mkdir bak mv CentOS-Linux-* bak
wget -O /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-vault-8.5.2111.repo
sudo yum -y install java-11-openjdk-devel java -version
sudo yum install git git --version