mkdir -p /usr/lib/jvm
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cp /usr/local/jdk/jdk1.8/jdk-8u221-linux-x64.tar.gz /software/
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tar -zxvf jdk-8u221-linux-x64.tar.gz -C /usr/lib/jvm/
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export JAVA_HOME=/usr/lib/jvm/jdk1.8.0_221
export JRE_HOME=${JAVA_HOME}/jre
export CLASSPATH=.:${JAVA_HOME}/lib:${JRE_HOME}/lib
export PATH=${JAVA_HOME}/bin:$PATH
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java -version
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