Shell | JDK 安装脚本

#!/bin/bash
tar -zxvf jdk-8u221-linux-x64.tar.gz -C /usr/local
# 环境变量
echo 'export JAVA_HOME=/usr/local/jdk1.8.0_221' > /etc/profile.d/java.sh
echo 'export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar' >> /etc/profile.d/java.sh
echo 'export PATH=${JAVA_HOME}/bin:$PATH' >> /etc/profile.d/java.sh
# source /etc/profile.d/java.sh
command source /etc/profile.d/java.sh
echo "JAVA_HOME=${JAVA_HOME}"
echo "CLASSPATH=${CLASSPATH}"
java -version