"install-java.sh" is an installation script for setting up Oracle Java Development Kit on Debian based Linux Operating Systems.

I'm mainly using Ubuntu and therefore this script is tested only on Ubuntu versions.

The script uses "unzip" command. Therefore please make sure it is installed.

sudo apt install unzip

The "install-java.sh" script will not download the Java distribution. You need to download JDK from Oracle.

It is required to have all Java distributions in a single directory.

For example, if you want to install Java 7, following files should be downloaded and moved to a single directory.

• jdk-7u80-linux-x64.tar.gz
• jdk-7u80-linux-x64-demos.tar.gz
• UnlimitedJCEPolicyJDK7.zip

Similarly for Java 8, following are the files required

• jdk-8u152-linux-x64.tar.gz
• jdk-8u152-linux-x64-demos.tar.gz
• jce_policy-8.zip

For Java 9, you only need to have the Java 9 binary distribution. For example,

• jdk-9.0.1_linux-x64_bin.tar.gz

The Java Demos and Java Cryptography Extension (JCE) Unlimited Strength Jurisdiction Policy files are optional.

There are no demos for Java 9.

Java 9 default JCE policy files already allow for "unlimited" cryptographic strengths.

The script needs to be run as root.

You need to provide the JDK distribution file (tar.gz) and the Java Installation Directory. The default value for Java installation directory is "/usr/lib/jvm"

Usage: 
install-java.sh -f <java_dist> [-p] <java_dir>

-f: The jdk tar.gz file
-p: Java installation directory

Example: Install Oracle JDK 7

sudo ./install-java.sh -f ~/software/java/jdk-7u80-linux-x64.tar.gz

Example: Install Oracle JDK 8

sudo ./install-java.sh -f ~/software/java/jdk-8u152-linux-x64.tar.gz

Example: Install Oracle JDK 9

sudo ./install-java.sh -f ~/software/java/jdk-9.0.1_linux-x64_bin.tar.gz

You can automate the Java installation script by using the yes command.

Example: Install Oracle JDK 8

yes | sudo ./install-java.sh -f ~/software/java/jdk-8u152-linux-x64.tar.gz

There is another script named "uninstall-java.sh" to uninstall Java.

You need to provide Java distribution directory.

Usage: 
uninstall-java.sh -p <java_dist_dir>

-p: Java distribution directory

Example: Uninstall Oracle JDK 7

sudo ./uninstall-java.sh -p /usr/lib/jvm/jdk1.7.0_80/

Copyright (C) 2014 M. Isuru Tharanga Chrishantha Perera

Licensed under the Apache License, Version 2.0