Shell script for installing Java, Maven and Jenkins in Ubuntu instance

#!/bin/bash

# Shell script for installing Java, Jenkins and Maven in Ubuntu EC2 instance

# Command for installing Java 11
sudo apt-get update
sudo apt-get install default-jdk -y

# Command for installing aws-cli
sudo apt install awscli -y

# Command for installing maven
sudo apt-get install maven -y

# Script for Jenkins installation

#Add Repository key to the system
wget -q -O - https://pkg.jenkins.io/debian/jenkins.io.key | sudo apt-key add -

#  Append debian package repo address to the system
echo deb http://pkg.jenkins.io/debian-stable binary/ | sudo tee /etc/apt/sources.list.d/jenkins.list

sudo apt-get update
# Install Jenkins
sudo apt-get install jenkins -y
echo "Jenkins installed successfully.."