Minecraft java installer (linux)

Minecraft java installer (linux)

This script provides an automated installation process for multiple Java versions on Debian-based Linux systems, optimized for running Minecraft servers.

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Features

• Interactive selection of Java versions to install
• Supports Java 8 (manual install), Java 11, 17, 19, and default-jdk from APT
• Auto-detection of missing packages (curl, sudo, tar) and guided installation
• Optional logging of all output to a log file
• Displays currently installed Java versions
• Guides the user through setting default java and javac versions

Supported Java Versions

Option	Java Version	Minecraft Version Range
1	Java 8	Minecraft 1.8 – 1.16.x
2	Java 11	Minecraft 1.17 – 1.18.x
3	Java 17	Minecraft 1.18.2 – 1.20.4
4	Java 19	Experimental / Snapshots
5	Default JDK	Future Versions (1.21+)

Requirements

• Debian/Ubuntu-based system
• Shell access with sudo privileges
• Internet access

How to Use

1. Download the script: install_mc_java.sh
2. Make it executable:

   chmod +x install_mc_java.sh
   

3. Run the script:

   ./install_mc_java.sh
   

4. Follow the on-screen prompts to select and install Java versions.

Optional Logging

To log all output to install_java.log, run:

./install_mc_java.sh --log

License

• You can find the license here