Verssae/README.md

## README.md

      
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              README.md
            
          
    Simple Scripts for Palworld Server

Useful simple scripts for Palworld Linux server.
Based on my experience about hosting palworld-server-docker on Google Cloud Platform.
Important
You should make the scripts executable (chmod +x <script_name>.sh)

Auto backup & restart server

Palworld servers currently have a memory leak issue. The following shows the memory usage when a server with 32GB of RAM, played by 2 to 5 people in the evening, was set to restart every day at 4:00 and 16:00 and operated for two days.
# Add following line to `crontab -e`
0 4,16 * * * /bin/bash /path/to/restarting.sh


Therefore, I am testing by changing the server to restart every 3 hours.
- 0 4,16 * * * /bin/bash /path/to/restarting.sh
+ 0 */3 * * * /bin/bash /path/to/restarting.sh
Auto Player Greeting

Schedule greetings.sh using crontab -e. For example:
* * * * * /bin/bash /path/to/greetings.sh
outputs [SYSTEM]:[12:01]<Hansae_Ju>...joined! using RCON.
Caution
When running (or restarting) the server for the first time, the player's Steam name is sometimes recorded (this seems to be a problem related to 'ShowPlayers').

How to update docker image?

docker-compose pull
docker-compose up --force-recreate --build -d
docker image prune -f // optional

  
## greetings.sh
#!/bin/bash

CONTAINER_NAME="palworld-server"
PLAYERS_FILE="players.txt"

if ! docker ps | grep -q $CONTAINER_NAME; then
    exit 1
fi

get_current_players() {
    echo "ShowPlayers" | docker exec -i palworld-server rcon-cli | \
    grep -E '^[^,]+,[0-9]+,[0-9]+$' | sed 's/\x1B\[[0-9;]*m//g' | cut -d ',' -f1 | sed 's/ /_/g'
}


get_saved_players() {
    if [ -f players.txt ]; then
        cat players.txt
    fi
}

compare_players() {
    local -n _current=$1
    local -n _saved=$2
    local current_time=$(date '+%H:%M')

    for player in "${_current[@]}"; do
        if [[ ! " ${_saved[*]} " =~ " $player " ]]; then
            echo "Broadcast [$current_time]:<$player>""...joined!" | docker exec -i palworld-server rcon-cli
        fi
    done

    for player in "${_saved[@]}"; do
        if [[ ! " ${_current[*]} " =~ " $player " ]]; then
            echo "Broadcast [$current_time]:<$player>""...left." | docker exec -i palworld-server rcon-cli
        fi
    done
}

current_players=($(get_current_players))

saved_players=($(get_saved_players))

compare_players current_players saved_players

printf "%s\n" "${current_players[@]}" > $PLAYERS_FILE

## restarting.sh
#!/bin/bash

CONTAINER_NAME="palworld-server"
PLAYERS_FILE="players.txt"

SHUTDOWN_SECONDS=30
SHUTDOWN_MESSAGE="Server_will_restart_in_""$SHUTDOWN_SECONDS""_seconds."

echo "Shutdown $SHUTDOWN_SECONDS $SHUTDOWN_MESSAGE" | docker exec -i $CONTAINER_NAME rcon-cli

rm $PLAYERS_FILE

docker exec $CONTAINER_NAME backup

docker restart -t $SHUTDOWN_SECONDS $CONTAINER_NAME
	#!/bin/bash

	CONTAINER_NAME="palworld-server"
	PLAYERS_FILE="players.txt"

	if ! docker ps \| grep -q $CONTAINER_NAME; then
	exit 1
	fi

	get_current_players() {
	echo "ShowPlayers" \| docker exec -i palworld-server rcon-cli \| \
	grep -E '^[^,]+,[0-9]+,[0-9]+$' \| sed 's/\x1B\[[0-9;]*m//g' \| cut -d ',' -f1 \| sed 's/ /_/g'
	}


	get_saved_players() {
	if [ -f players.txt ]; then
	cat players.txt
	fi
	}

	compare_players() {
	local -n _current=$1
	local -n _saved=$2
	local current_time=$(date '+%H:%M')

	for player in "${_current[@]}"; do
	if [[ ! " ${_saved[*]} " =~ " $player " ]]; then
	echo "Broadcast [$current_time]:<$player>""...joined!" \| docker exec -i palworld-server rcon-cli
	fi
	done

	for player in "${_saved[@]}"; do
	if [[ ! " ${_current[*]} " =~ " $player " ]]; then
	echo "Broadcast [$current_time]:<$player>""...left." \| docker exec -i palworld-server rcon-cli
	fi
	done
	}

	current_players=($(get_current_players))

	saved_players=($(get_saved_players))

	compare_players current_players saved_players

	printf "%s\n" "${current_players[@]}" > $PLAYERS_FILE