介绍

Linux安装JDK脚本。

系统要求

• ubuntu及其衍生系统
• Debian及其衍生系统

使用

• 下载JDK
• 保存脚本为InstallJDK.sh

• 运行

  • 示例
  • sudo bash InstallJDK.sh ~/Downloads/jdk-8u171-linux-x64.tar.gz

脚本

#!/bin/bash ######################################################################### # File Name: offline-install-jdk.sh # Author: bovenson # Email:  szhkai@126.COM # Created Time: 2017-09-19 15:52:15 #########################################################################  # 使用: bash InstallJDK.sh jdk-file.tar.gz  if [[ $EUID -ne 0 ]]; then    echo "This script must be run as root"     exit 1 fi  # 解压jdk文件 extractFile() {     destPath="/usr/lib/jvm/${dirName}"    # 解压目标目录     if [ -e $destPath ] ; then         echo "=============== $destPath exists ==============="     else         if [ ! -e /usr/lib/jvm ] ; then             mkdir -p /usr/lib/jvm         fi         echo "=============== Extracting files ==============="         tar -xzf $filePath -C /usr/lib/jvm/         echo "=============== Extracting files Done ==============="     fi  }  # 在Profile中设置PATH setProfile() {     if [ -v JAVA_HOME ]; then         echo "=============== JAVA_HOME setted ==============="         exit 1     else         echo "=============== Setting profile ==============="         echo "# JDK setting" >> /etc/profile         echo "export JAVA_HOME=${destPath}" >> /etc/profile         echo "export CLASSPATH=$CLASSPATH:.:$JAVA_HOME/lib:$JAVA_HOME/jre/lib" >> /etc/profile         echo "export PATH=$PATH:$JAVA_HOME/bin:$JAVA_HOME/jre/bin" >> /etc/profile         echo "=============== Setting profile done ==============="     fi }  main() {     source /etc/profile     extractFile     setProfile     echo "=============== ALL DONE ==============="      # source /etc/profile      # rm /usr/bin/java     # rm /usr/bin/javac     # ln -s /usr/lib/jvm/jdk/bin/java /usr/bin/java     # ln -s /usr/lib/jvm/jdk/bin/javac /usr/bin/javac        # # update-alternatives --install /usr/lib/java java /usr/lib/jvm/jdk/bin/java 300       # # update-alternatives --install /usr/lib/javac javac /usr/lib/jvm/jdk/bin/javac 300     # # update-alternatives --config java      java -version }  # 检查输入文件 if [ ! $# -eq 1 ] ; then    # 参数不正确     echo "=============================="     echo "Wrong Parameters."     echo "Usage: Command JDK-File-Path"     echo "Example: bash InstallJDK.sh jdk-1.8.11.tar.gz"     echo "==============================" elif [ ! -f $1 ] ; then        # 文件不存在         echo "=============== JDK file doesn't exists ==============="         exit -1 else                        # 开始安装     echo "=============== Begin install JDK ==============="     filePath=$1                # 文件路径      # 获取解压后文件夹名称     fileNames=($(tar -tf $1))     dirName=${fileNames%/*}     main fi