Centos自动安装java脚本

链接: https://pan.baidu.com/s/1u4nBputY5Pqve63FaXhIFg?pwd=5qui 提取码: 5qui
将JDK文件上传到/export/softwares目录，然后执行以下脚本

#! /bin/bash

echo "start to delete old java version"

sleep 1

old_java="$(rpm -qa | grep java)"

for old in old_java; do
  echo "uninstalling $old"
  rpm -e --nodeps $old
done

sleep 1

echo "start to prepare directory"

install_path='/export/server'

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

echo "start to decompress files "

tar -zxvf /export/softwares/jdk-8u241-linux-x64.tar.gz -C $install_path

echo "start to set java path"

unzip_folder="$(ls $install_path | grep jdk )"

JAVA_HOME="$install_path/$unzip_folder"


sed -i "/JAVA_HOME/d" /etc/profile

echo "setting java home directory: $JAVA_HOME"
echo "export JAVA_HOME=$JAVA_HOME" >> /etc/profile

echo "setting java home path"
echo "export PATH=:\$JAVA_HOME/bin:\$PATH" >> /etc/profile

source /etc/profile
echo "you have successfully installed java "

java -version