Java Tutorial : Uninstall JDK (Linux Operating System)

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How to Cleanly Uninstall JDK from Linux

Sometimes you need to clear out old versions of Java to make room for a new update or simply to clean up your system. Removing JDK from Linux might seem intimidating at first, but with a few simple terminal commands, you can ensure a clean uninstallation without leaving any mess behind.

Step 1: Identify Installed Java Versions

Before you delete anything, you need to know what you have. Open your terminal and check the current Java version with java -version. You can also list all installed Java packages using your system's package manager to ensure you target the right version.

Step 2: Use the Package Manager to Remove

If you installed Java using a package manager like APT (for Ubuntu/Debian) or YUM (for RHEL/CentOS), the removal is straightforward. Simply use the remove or purge command followed by the package name. This will handle the binary files and most configuration links automatically.

Step 3: Manually Removing Tarball Installations

If you installed Java manually by extracting a .tar.gz file, you will need to delete the folder manually. Navigate to the directory where you stored the JDK (common locations include /usr/lib/jvm/ or /opt/) and use the rm -rf command on the specific JDK folder.

Step 4: Cleaning Up Environment Variables

After removing the files, don't forget your environment variables! Open your .bashrc, .bash_profile, or /etc/environment file and remove any lines referring to JAVA_HOME or entries in the PATH that point to the deleted JDK directory.

Step 5: Verify Removal

Restart your terminal and type java -version. If the uninstallation was successful, your system should either show another installed version or return a message saying the command was not found. Your system is now clean!

More Helpful Java Guides:

• How to Uninstall JDK 23 on Linux OS or Amazon EC2
• How to Install JDK 22 on Linux OS or Amazon EC2
• JDK 11 Installation on Linux OS and Amazon EC2 Explained

Click here to watch in Youtube :
https://www.youtube.com/watch?v=5gOfLZCW260&list=UUhwKlOVR041tngjerWxVccw

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Java Tutorial : Uninstall JDK (Linux Operating System) 

Java Tutorial : Uninstall JDK (Linux Operating System) 

Java Tutorial : Uninstall JDK (Linux Operating System) 

Java Tutorial : Uninstall JDK (Linux Operating System) 

Java Tutorial : Uninstall JDK (Linux Operating System) 

Java Tutorial : Uninstall JDK (Linux Operating System) 

Java Tutorial : Uninstall JDK (Linux Operating System) 

Linux Commands:

#Which java

#java –version

#rpm –qa | grep jdk

#rpm  -e <package_name>

#rpm