一些工作中常用的Linux环境变量方便拷贝
jdk
export JAVA_HOME=/root/software/jdk1.8.0_251
export JRE_HOME=/root/software/jdk1.8.0_251/jre
export CLASSPATH=.:$CLASSPATH:$JAVA_HOME/lib:$JRE_HOME/lib
export PATH=$PATH:$JAVA_HOME/bin:$JRE_HOME/bin
maven
export MAVEN_HOME=/root/software/apache-maven-3.6.3
export PATH=$PATH:$MAVEN_HOME/bin