enviroment linux jdk and git and maven

#java_home
export JAVA_HOME=/usr/local/java/jdk1.8.0_211
export JRE_HOME=$JAVA_HOME/jre
export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar
export PATH=$PATH:$JAVA_HOME/bin
#git 
export PATH="/usr/local/git/bin:$PATH"
#maven
#maven
export MAVEN_HOME=/usr/local/maven/apache-maven-3.6.1
export PATH=${MAVEN_HOME}/bin:${PATH}

　　linux jdk8.tar.gz  

       git2.3.zip  github 

       maven 3.6 maven org