linux 环境下JDK自动安装脚本

最新推荐文章于 2024-01-07 02:10:12 发布

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最新推荐文章于 2024-01-07 02:10:12 发布

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本文提供了一个自动化脚本，用于在Linux环境下卸载旧版JDK，安装JDK 8u91，并配置环境变量。脚本首先检查并删除已存在的JDK，然后安装指定版本的JDK，最后更新系统环境变量。

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脚本如下，jdk-8u91-linux-x64.rpm 放到同一个目录下，执行即可。

#! /bin/bash
# shell script tp install jdk
# if ! type -p wget; then
# #install wget
# yum install wget
# fi

# Step1.Check jdk exists or not !

for i in $(rpm -qa | grep jdk | grep -v grep)
do
echo "-->[`date +"%Y-%m-%d %H:%M.%S"`] Deleting "$i
rpm -e --nodeps $i
done

# Step2.Feedback if jdk was uninstalled or not !

if [[ -n $(rpm -qa | grep jdk | grep -v grep) ]];
then
echo "-->[`date +"%Y-%m-%d %H:%M.%S"`] Failed to delete the $i"
exit 0
else
echo "-->[`date +"%Y-%m-%d %H:%M.%S"`] Successfully delete $i"

# Step3.Install jdk
javaPath=/usr/java
if [[ -n $javaPath ]]
then
rm -rf /usr/java
mkdir /usr/java
cp jdk-8u91-linux-x64.rpm /usr/java/jdk-8u91-linux-x64.rpm
# wget --no-check-certificate --no-cookies --header "Cookie: oraclelicense=accept-securebackup-cookie" http://download.oracle.com/otn-pub/java/jdk/8u161-b12/2f38c3b165be4555a1fa6e98c45e0808/jdk-8u91-linux-x64.rpm

if [ $? -eq 0 ]
then
chmod +x jdk-8u91-linux-x64.rpm
echo "-->[`date +"%Y-%m-%d %H:%M.%S"`] Installing ..."
rpm -ivh jdk-8u91-linux-x64.rpm
if [ $? -eq 0 ]
then
echo "-->[`date +"%Y-%m-%d %H:%M.%S"`] Successfully Installed jdk-8u91-linux-x64.rpm"
else
echo "-->[`date +"%Y-%m-%d %H:%M.%S"`] Failed to install jdk-8u91-linux-x64.rpm"
exit 0
fi
fi
fi
fi

# Step4.Config jdk-envrionment

cp /etc/profile /etc/profile.beforeInstallJDKenv.bak

echo "# For jdk start" >> /etc/profile
echo "export JAVA_HOME=/usr/java/jdk1.8.0_91" >> /etc/profile
echo "export JRE_HOME=/usr/java/jdk1.8.0_91/jre" >> /etc/profile
echo "export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar" >> /etc/profile
echo "export PATH=\$JAVA_HOME/bin:$JRE_HOME/bin:\$PATH" >> /etc/profile
echo "# For jdk end " >> /etc/profile

if [ $? -eq 0 ]
then
source /etc/profile
echo "-->[`date +"%Y-%m-%d %H:%M.%S"`] JDK environment has been successed set in /etc/profile."
echo "-->[`date +"%Y-%m-%d %H:%M.%S"`] java -version"
java -version
fi