Installing Java

Linux 64-bit installation instructions for Java

  • Platform supported: Oracle Enterprise Linux, Oracle Linux, Red Hat Linux, SLES, SUSE Linux, Ubuntu Linux
  • Java version: 7.0, 8.0

Follow these steps to download and install Java for Linux.

      → Download java here

     → Install

NOTE: To install Java in a different location such as /usr/local, you must login as the root user to gain the necessary permissions. If you do not have root access, install Java in your home directory or a subdirectory for which you have write permissions.

1. After downloading the .tar.gz file Change to the directory in which you want to install. Type:

cd directory_path_name


Lets say for example, you want to install the software in the /usr/java/ directory, then type:

cd /usr/java/

 

 2. Move the .tar.gz archive binary to the current directory by typing 

mv “source directory path/file to be moved” “destination directory where the files has to be moved” 

mv /home/user_home/Downloads/jdk-8u101-linux-x64.tar.gz /user/java


(here user_home indicates the name of the loggedin user e.g  /home/john/Downloads, /home/sammy/Downloads etc.)

 

3. Unpack the tarball and install the jdk   

tar zxvf jdk-8u101-linux-x64.tar.gz

 Delete the .tar.gz file if you want to save disk space or move it to some other location.

Set JAVA_HOME Path

  • Open terminal go to your account and open .bashrc. using vim .bashrc

Append or Write 

export JAVA_HOME=/user/java 
export PATH=$PATH:$JAVA_HOME/bin
  • .bashrc is a shell script that Bash runs whenever it is started interactively. You can put any command in that file that you could type at the command prompt.
  • After successfully saving the .bashrc file run the below command to re-run the file so that it can run all the newly added commands
    source .bashrc
  • Test if java is available as environment variable or not


Java Installation 12 core java 12 Java-8 12

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