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mc-bash 🛠️

Bash script to automatically restart & backup your server.

This simple script takes care of your minecraft server restarts. It also creates backup of your world by zipping world, world_nether and world_the_end directories and putting them in backup folder. What's more, it deletes the backup files if they are older than 7 days.

Prerequisites

  1. Put server.sh in your server directory.
  2. Open server.sh and edit Settings section. Save and close the file.
  3. Use sudo chmod +x server.sh to allow the script to be executed.
  4. Make sure you have zip and tmux installed. (You can use also use screen but I like tmux better). If not, use sudo apt install zip and sudo apt install tmux.
  5. Type mkdir backup. This will create new directory called backup. All world backups will be stored there.
  6. Type crontab -e. This will bring up text editor with your cronjob tasks. At the end of the file add the line that will stop (restart) your server. The command is tmux send -t minecraft "stop" Enter. You can use sites like https://crontab-generator.org/ to generate cronjob tasks for you. Your file should look similar to this:
# This line stops (and restarts) the server every day at midnight.
0 0 * * * tmux send -t minecraft "stop" Enter
# This line sends a warning 5 minutes before server restart
55 23 * * * tmux send -t minecraft "say Server restart in 5 minutes..." Enter
  1. Save the file. You are now ready to use the script.

Usage

  1. Create new tmux session by executing tmux new -s minecraft.
  2. Now run the script by entering ./server.sh. You should see the server beggining to load.
  3. Press Ctrl + B. Then press D to detach from session.

That's it. Now everytime your server goes down by /stop command or by some error, it will be automatically restarted and a new backup file will be created. If you want to attach to the session again to execute some minecraft commands, type tmux attach -t minecraft. If you want to kill the server completely, just execute tmux kill-session -t minecraft.