script for simple java app jar file on linux

simple-java-helloworld-linux-script

#!/bin/bash
touch hello.java
echo 'class Hello{public static void main(String[] args){System.out.println("Hello World");}}' > hello.java
javac hello.java
touch MANIFEST.MF
echo "Main-Class: Hello" > MANIFEST.MF
jar cmfv MANIFEST.MF Hello.jar *.class 
java -jar Hello.jar