tomcat 的安装脚本

#!/bin/bash
java -version > /dev/null
if [ $? -ne 0 ];then
        rpm -ivh jdk-8u131-linux-x64_.rpm
        tar -zxvf apache-tomcat-8.5.35.tar.gz
        netstat -ntlp |grep 8080 > /dev/null
        if [ $? -ne  0 ];then
        cd apache-tomcat-8.5.35/bin/
        ./startup.sh
        fi
else
        systemctl stop firewalld
        setenforce 0
fi