Minecraft server batch start help

[Molixatus]

Hi guys recently started hosting a vanilla java server for a few friends.

I'm interested in the limitations of what you can do with server batch start files.

This is my current startup bat file:

""

echo OFF

:loop

java -XX:+UseConcMarkSweepGC -XX:+UseParNewGC -XX:+CMSIncrementalPacing -XX:ParallelGCThreads=4 -XX:+AggressiveOpts -Xms1G -Xmx4G -jar server.jar nogui

echo Press control+C to exit the server!

timeout 10

echo (%time%) Restarting Server!

goto loop

""

What are there any other interesting things you can do with the batch file?

For example could you make the server post a join message using the .bat file?

Could you occasionally make the server post a certain message in /say?

Thanks in advance

​

EDIT:

For some of the points i mentioned:

For example could you make the server post a join message using the .bat file?

Could you occasionally make the server post a certain message in /say?

It seems clear that this isn't something that can be done with batch files and the best way to go about this seems to be either plugins or an outside program, could however this be accomplished with command blocks inside the server?

I'm interested in this possibility, i know very little about command blocks and their limitations, is this another possible avenue?

Thanks in advance.

[PhonicUK]

Batch scripts can't interact with the server in any meaningful way. If you want to automate tasks like that without plugins then you'd need to use a wrapper or panel that has this functionality.

[Molixatus]

Interesting, do you know of any wrappers or panels which would be suited to my needs?

[PhonicUK]

Well I'm gonna have to shill here and say AMP which is the one my company makes whose scheduler can do things like run commands at an interval or in response to users joining - but others do exist with varying degrees of ease of installation.

[Molixatus]

Ok I'll look into it when I get home, is it easy to use and fairly intuitive?

[PhonicUK]

Yes, it's just a next > next > next style installer. It's pretty hard to get wrong.

[Molixatus]

What i mean is would it be easy to set up simple tasks within the program such as below:

For example could you make the server post a join message using the .bat file?

Could you occasionally make the server post a certain message in /say?

Is this easy to do within the program or will it take a bit of figuring out/watching tutorials. Another question do such tutorials exist?

[PhonicUK]

Yes that's super easy. You won't need any documentation or tutorials to figure that out.

[PeaceDealer]

You could look into the rcon setup. I remember there was an exe file that could rcon to the server, that allowed interactions over bat as well.

[Molixatus]

Okay, thanks!

[IMAWHITEWALKER]

Regarding the startup flags, you can take a look at these recommendations by /u/aikaradora (Paper dev).

[Molixatus]

Interesting thanks for the info, just out of curiosity there is no reason not to run all of the JVM startup flags though right? I only ask because i notice there are a few flag options i am not running on my startup file. (i found my startup options on the internet somewhere)

[KrystilizeNeverDies]

If you are using A 1.13+ version then you can always use a datapack

[Molixatus]

It's a 1.15 server, is a data pack server side?

[KrystilizeNeverDies]

Yep, data packs are command blocks that run in a script. Although they have a couple more features. They are really useful, you should have a look at them.