Minecraft Backup

Minecraft Backup is a free Linux script for backing up Minecraft server world folders to local storage. It can create tar files or use the restic backend, and it supports servers managed through screen or tmux, RCON, and Docker RCON. It works with vanilla servers without plugins and can post backup status messages in Minecraft chat. Cron scheduling is supported, with an hourly example provided. Retention options include keeping all backups, deleting the oldest sequentially, or thinning older sets: thin retention keeps the latest 24 hourly and 30 daily backups, then uses remaining space for weekly backups. The requirements include tar and a chosen compression program, with gzip as the default; RCON also needs xxd. The project recommends RCON because it waits for the server to confirm saving is complete. Backups can leave player data out of sync with world data, possibly duplicating or losing items. A Minecraft bug may also cause a backup to fail. The project identifies its license as MIT.