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