一键安装jdk，是不是很爽。。。 这个脚本，很好地解决了jdk的安装问题，哈哈 写了一段时间，希望对各位有所帮助！！！
1、脚本支持安装jdk 2、脚本支持卸载jdk 3、脚本编写模块化，便于后期加工 4、脚本对jdk安装过程中出现的多种问题都有相关考虑
#!/bin/sh CHECK() { echo -e "\033[33m 正在为您校验jdk安装包... \033[0m" if [ -f "${myway}/jdk-8u221-linux-x64.rpm" ];then echo -e "\033[32m 校验成功！！ \033[0m" INSTALL_ING else echo -e "\033[31m 校验失败！！请上传jdk安装包至'${myway}'文件夹下 \033[0m" exit fi } PRESS_INSTALL() { echo -e "\033[32m 即将安装JDK... \033[0m" echo -e "\033[32m Press any key to install...or Press Ctrl+c to cancel \033[0m" SAVE=`stty -g` stty -icanon -echo min 1 time 0 dd count=1 2>/dev/null stty ${SAVE} } INSTALL_ING() { PRESS_INSTALL echo -e "\033[32m 开始安装JDK... \033[0m" rpm -ivh jdk-8u221-linux-x64.rpm echo "#JAVA_HOME">>/etc/profile echo "JAVA_HOME=/usr/java/jdk1.8.0_221-amd64">>/etc/profile echo "JRE_HOME=/usr/java/jdk1.8.0_221-amd64/jre">>/etc/profile echo "PATH=$PATH:$JAVA_HOME/bin:$JRE_HOME/bin">>/etc/profile echo "CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar:$JRE_HOME/lib">>/etc/profile echo "export JAVA_HOME JRE_HOME PATH CLASSPATH">>/etc/profile source /etc/profile java -version if [ $? -eq 0 ]; then echo -e "\033[32m 安装成功！！！ \033[0m" else echo -e "\033[031m 安装失败！！！ \033[0m" exit fi } ##################################################### #输入n STOP_UNINSTALL() { echo -e "\033[33m 已停止卸载!! \033[0m" exit } ##################################################### #输入错误 UNINSTALL_AGAIN() { echo -e "\033[33m 请重新输入!!! \033[0m" UNINSTALL_CHOOSE } #输入y UNINSTALL_ING() { killall -9 java rpm -qa | grep jdk | xargs rpm -e --nodeps java -version if [ $? -eq 0 ]; then echo -e "\033[031m 卸载失败，请手动用rm命令卸载!! \033[0m" exit else echo -e "\033[32m 卸载成功！！！ \033[0m" echo "即将开始JDK安装！！" INSTALL_ING fi } ##################################################### #开始输入 UNINSTALL_CHOOSE() { read -p "是否卸载JDK？yes/no: " Select case "${Select}" in y|Y|yes) Select="y" UNINSTALL_ING ;; n|N|no) Select="n" STOP_UNINSTALL ;; *) echo "输入错误" UNINSTALL_AGAIN esac } ###################################################### #程序从这里开始 myway=`pwd` JDK=`rpm -qa | grep jdk` echo -e "\033[33m 开始检测本机是否安装JDK... \033[0m" echo -e "\033[33m 开始检测本机是否安装JDK... \033[0m" VS=`java -version` if [ $? -eq 0 ]; then echo -e "\033[33m 检测到您已安装JDK,版本为"${VS}" \033[0m" UNINSTALL_CHOOSE else echo -e "\033[33m 检测到您尚未安装JDK，将为您自动安装!! \033[0m" CHECK fi