How to set up Jenkins, Maven, Java, Git on Amazon EC2? Script for setting up EC2 with Jenkins, Maven, Java, Git

Here below is the shell script for installing Git, Jenkins, Java, Maven on RedHat Enterprise Linux...
Copy the below lines into a shell script, name as setup_ec2.sh. Give necessary permission to execute the shell script and execute it...

sudo yum -y update
sudo yum -y install wget
sudo yum -y install git

Java installation
wget --no-cookies --header "Cookie: gpw_e24=xxx; oraclelicense=accept-securebackup-cookie;" "http://download.oracle.com/otn-pub/java/jdk/8u11-b12/jdk-8u11-linux-x64.rpm"
sudo rpm -i jdk-8u11-linux-x64.rpm
sudo /usr/sbin/alternatives --install /usr/bin/java java /usr/java/jdk1.8.0_11/bin/java 20000
sudo /usr/sbin/alternatives --config java

download jenkins 
wget -O /etc/yum.repos.d/jenkins.repo http://pkg.jenkins-ci.org/redhat-stable/jenkins.repo
rpm --import http://pkg.jenkins-ci.org/redhat-stable/jenkins-ci.org.key
sudo yum -y install jenkins
service jenkins start

Maven installation
sudo wget http://repos.fedorapeople.org/repos/dchen/apache-maven/epel-apache-maven.repo -O /etc/yum.repos.d/epel-apache-maven.reposudo sed -i s/\$releasever/6/g /etc/yum.repos.d/epel-apache-maven.repo
sudo yum install -y apache-maven