环境变量文件编辑
vi ~/.bashrc
环境变量配置
export JAVA_HOME=/usr/lib/jdk/jdk-14
export CLASSPATH=.:${JAVA_HOME}/lib
export PATH=${JAVA_HOME}/bin:$PATH
重新载入环境变量配置文件
source /etc/profile
vi ~/.bashrc
export JAVA_HOME=/usr/lib/jdk/jdk-14
export CLASSPATH=.:${JAVA_HOME}/lib
export PATH=${JAVA_HOME}/bin:$PATH
source /etc/profile
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