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Check whether is there any player online.
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#!/bin/bash | |
#Checks for active connections on port 22 (ssh) and 25565 (minecraft) | |
#If no connections are found, shut down the server | |
#Add a little delay, so if the server is start right before the crontab sheduled time. The user will still have some time to connect first. | |
sleep 3m | |
sshCons=$(netstat -anp | grep :22 | grep ESTABLISHED | wc -l) | |
mcCons=$(netstat -anp | grep :25565 | grep ESTABLISHED | wc -l) | |
echo "Active SSH Connections: $sshCons" | |
echo "Active Minecraft Connections: $mcCons" | |
/home/ubuntu/mc/discord.sh/discord.sh --text "(Hm...) There's still $mcCons people here... \n(When can I take off...?)" | |
if [ $((mcCons)) = 0 ] | |
then | |
echo "Checking for SSH connections before shutting down" | |
if [[ $((sshCons)) = 0 ]] | |
then | |
echo "no ssh connections, closing server instace" | |
/home/ubuntu/mc/discord.sh/discord.sh --text "Nobody here~ Shutting down server~" | |
sudo systemctl stop minecraft | |
/home/ubuntu/mc/backup.sh | |
/home/ubuntu/mc/discord.sh/discord.sh --text "Done~ Shutting down~~" | |
sudo shutdown | |
else | |
echo "There are 1 or more active ssh connections, skip termination" | |
/home/ubuntu/mc/discord.sh/discord.sh --text "(There's still $sshCons ssh connection...)" | |
fi | |
else | |
echo "Somebody is playing minecraft, do nothing!" | |
fi |
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