Linux下 JDK 脚本自动化安装配置

情景描述

Linux下安装jdk后还需要进一步配置环境变量，这里写了一个简单的脚本，用来解决手动安装配置的问题；

代码实现

在执行完脚本后，需要在shell中另外执行 " source /etc/profile"，才能立即生效
代码位置：

#!/bin/bash

if [ $UID -ne 0 ];
then
    echo "Please run with super user"
    exit 1
fi

JDK_FILE="jdk-7u80-linux-x64.tar.gz"
JDK_DURL=""
JDK_INSTALL_DIR="/usr/local/java"
JDK_ROOT_FOLDER="jdk1.7.0_80"
JDK_STD_FOLDER="/usr/java"
PROFILE="/etc/profile"

if [ ! -f $JDK_FILE ]; then
    wget --no-check-certificate -c --header "Cookie: oraclelicense=accept-securebackup-cookie" $JDK_DURL -O ./$JDK_FILE
fi

if [ $? -ne 0 ];
then
    echo "Download $JDK_FILE failed."
    exit 1
else
    echo "Download $JDK_FILE success."
fi

if [ ! -f "$JDK_FILE" ];
then
    echo "$JDK_FILE Not Found."
    exit 1
fi

if [ ! -d "$JDK_INSTALL_DIR" ];
then
    echo "ehll"
    mkdir -p "$JDK_INSTALL_DIR"
fi

tar -zxvf $JDK_FILE -C $JDK_INSTALL_DIR

if [ ! -d "$JDK_STD_FOLDER" ];
then
    mkdir -p "$JDK_STD_FOLDER"
fi

ln -s "$JDK_INSTALL_DIR/$JDK_ROOT_FOLDER" "$JDK_STD_FOLDER/jdk"

echo "JAVA_HOME=$JDK_STD_FOLDER/jdk" >> "$PROFILE"
echo "PATH=$JDK_STD_FOLDER/jdk/bin:$PATH" >> "$PROFILE"
echo "CLASSPATH=$JDK_STD_FOLDER/jdk/lib/rt.jar:$JDK_STD_FOLDER/jdk/lib/tools.jar" >> "$PROFILE"
source "$PROFILE"

java -version