shell Deploy Java with one click

vim /root/java_install.sh

#!/bin/sh
# -*- coding: utf-8 -*-
# Author: CIAS
# 2020-12-14

LogFile="/var/log/install_$(date +'%Y%m%d')".log

echo -e '\E[32m' "Check to see if the Java environment variables were previously configured"
sleep 3
sed -i '/export JAVA_HOME=/'d /etc/profile 2>&1 | tee -a $LogFile
sed -i '/export CLASSPATH=/'d /etc/profile 2>&1 | tee -a $LogFile
sed -i '/export PATH=/'d /etc/profile 2>&1 | tee -a $LogFile
sed -i '/export JRE_HOME=/'d /etc/profile 2>&1 | tee -a $LogFile

echo "Install download tool"
sleep 3
yum install wget -y 2>&1 | tee -a $LogFile

echo "shutdown selinux"
sleep 3
sed -i 's/SELINUX=enforcing/SELINUX=disabled/' /etc/selinux/config 2>&1 | tee -a $LogFile

echo "Download the JDK installation package"
sleep 3
wget -N -P /opt/ https://repo.huaweicloud.com/java/jdk/8u151-b12/jdk-8u151-linux-x64.tar.gz 2>&1 | tee -a $LogFile

echo "Unpack the JDK" >> $LogFile
sleep 3
tar -xvf /opt/jdk-8u151-linux-x64.tar.gz -C /opt/ 2>&1 | tee -a $LogFile

echo "Configuring the JDK environment"
sleep 3
sed -i '$aexport JAVA_HOME=/opt/jdk1.8.0_151' /etc/profile 2>&1 | tee -a $LogFile
sed -i '$aexport JRE_HOME=/opt/jdk1.8.0_151/jre' /etc/profile 2>&1 | tee -a $LogFile
sed -i '$aexport CLASSPATH=.:\$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar:\$JRE_HOME/lib:\$CLASSPATH' /etc/profile 2>&1 | tee -a $LogFile
sed -i '$aexport PATH=\$JAVA_HOME/bin:\$PATH' /etc/profile 2>&1 | tee -a $LogFile

echo "flash file"
sleep 3
source /etc/profile 2>&1 | tee -a $LogFile

echo "Remove installation package"
sleep 3
rm -rf /opt/jdk-8u151-linux-x64.tar.gz 2>&1 | tee -a $LogFile