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docker-minecraft-server/docs/configuration/auto-rcon-commands.md

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Auto-execute RCON commands

RCON commands can be configured to execute when the server starts, a client connects, or a client disconnects.

!!! note

When declaring several commands within a compose file environment variable, it's easiest to use YAML's `|-` [block style indicator](https://yaml-multiline.info/).

On Server Start:

      RCON_CMDS_STARTUP:  |-
        gamerule doFireTick false
        pregen start 200

On Client Connection:

      RCON_CMDS_ON_CONNECT:  |-
        team join New @a[team=]

Note:

  • On client connect we only know there was a connection, and not who connected. RCON commands will need to be used for that.

On Client Disconnect:

      RCON_CMDS_ON_DISCONNECT:  |-
        gamerule doFireTick true

On First Client Connect

      RCON_CMDS_FIRST_CONNECT: |-
        pregen stop

On Last Client Disconnect

      RCON_CMDS_LAST_DISCONNECT: |-
        kill @e[type=minecraft:boat]
        pregen start 200

Example of rules for new players

Uses team NEW and team OLD to track players on the server. So move player with no team to NEW, run a command, move them to team OLD. Reference Article

      RCON_CMDS_STARTUP:  |-
        /pregen start 200
        /gamerule doFireTick false
        /team add New
        /team add Old        
      RCON_CMDS_ON_CONNECT: |-
        /team join New @a[team=]
        /give @a[team=New] birch_boat
        /team join Old @a[team=New]        
      RCON_CMDS_FIRST_CONNECT: |-
        /pregen stop        
      RCON_CMDS_LAST_DISCONNECT: |-
        /kill @e[type=minecraft:boat]
        /pregen start 200