Writing a Startscript


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# 1  
Java Writing a Startscript

I hope I have found the perfect place for my problem ...

I have a dedicated server with some minecraftservers (java) which are connected via a Bungeecord on it.
These all have a start.sh which looks in its folder like this:

Code:
screen -A -m -d -S SERVERNAME java -jar -Xmx2048M -Xms2048M spigot.jar

The stop.sh looks like this:

Code:
screen -S SERVERNAME -X quit


I would like to combine the scripts, that you must perform only one file to start/stop the servernetwork...
It would be perfect if there was skript, which allows to start/stop the servers seperately AND together.... But I have no idea if such a programm is even possible Smilie In another Forum they said i wouldn't be that hard to wirte something like that. They said I'd have to write a Start/Stop/Status script for the servers seperately and combine them in another script. Would be really nice if someone would help Smilie The gameservers are running a screen when they are online. It would be brilliant if I could check the Status of the servers. (The script has to check if there is a screen online with the name "XY")

I look forward to your answers Smilie

Yours sincerely
Spongebob

PS: Sorry for my bad english Smilie



I tried really hard with this one, but the status isn't working that fine and i can't connect the scripts:

Code:
#!/bin/bash
INSTANZ="Bungeecord"
BPDIR=/home/bungeecord
Pidfile=/home/Steuerung/bungee.pid

if [ -f $Pidfile ]
then
	Pid=`cat $Pidfile`
fi

case "$1" in
'start')
		if [ -f $Pidfile ] ; then
				if test `ps -e | grep -c $Pid` = 1; then
						echo "Not starting $INSTANZ - instance already running with PID: $Pid"
				else
						echo "Starting $INSTANZ"
						cd $BPDIR
						nohup ./start.sh &> /dev/null &
						echo $! > $Pidfile
				fi
		else
				echo "Starting $INSTANZ"
				cd $BPDIR
				nohup ./bsp.sh &> /dev/null &
				echo $! > $Pidfile
		fi
		;;

'stop')
		if [ -f $Pidfile ] ; then
				echo "stopping $INSTANZ"
					cd $BPDIR
						nohup ./stop.sh &> /dev/null &
						echo $! > $Pidfile
		else
				echo "Cannot stop $INSTANZ - no Pidfile found!"
		fi
		;;

'restart')
		$0 stop
		sleep 30
		$0 start
		;;

'status')
		if [ -f $Pidfile ] ; then
				if test `ps -e | grep -c $Pid` = 0; then
						echo "$INSTANZ not running"
				else
						echo "$INSTANZ running with PID: [$Pid]"
				fi
		else
				echo "$Pidfile does not exist! Cannot process $INSTANZ status!"
				exit 1
		fi
		;;

*)
		echo "usage: $0 { start | stop | restart | status }"
		;;

esac
exit 0


Last edited by jim mcnamara; 12-30-2014 at 09:10 AM..
# 2  
RE: status
If you are going to test Pidfile for zero lines,
Code:
if test `ps -e | grep -c $Pid` = 0; then

... try
Code:
> $Pidfile  # instead of echo $! > $Pidfile

when you 'stop' or initialize $Pidfile

Last edited by ongoto; 12-30-2014 at 10:24 AM..
This User Gave Thanks to ongoto For This Post:
# 3  
Quote:
Originally Posted by ongoto
RE: status
If you are going to test Pidfile for zero lines,
Code:
if test `ps -e | grep -c $Pid` = 0; then

... try
Code:
> $Pidfile  # instead of echo $! > $Pidfile

when you 'stop' or initialize $Pidfile
Great, the Status-Test is working now. But do you know if it is possible to test if there is a screen on with a specified name instead? And how to combine these scripts into one?
# 4  
Quote:
Originally Posted by Spongebob
Great, the Status-Test is working now. But do you know if it is possible to test if there is a screen on with a specified name instead? And how to combine these scripts into one?
Screen is a pretty complex monster. There is a command to list sessions...
Code:
screen -ls
screen --list

You might be able to incorporate that output into your scripts.
See man screen
This User Gave Thanks to ongoto For This Post:
# 5  
Quote:
Originally Posted by ongoto
Screen is a pretty complex monster. There is a command to list sessions...
Code:
screen -ls
screen --list

You might be able to incorporate that output into your scripts.
See man screen
I know this command. But I don't know how to check if there is a screen with a specified name in this list... Do you know?

And do you know how to combine my startscripts? It's more important to me to start all servers with one command Smilie
# 6  
Sorry. Smilie
I don't know enough about screen or servers to help you there. I'm sure someone will come along who does.
This User Gave Thanks to ongoto For This Post:
# 7  
Quote:
Originally Posted by ongoto
Sorry. Smilie
I don't know enough about screen or servers to help you there. I'm sure someone will come along who does.
Still a huge Thank you Smilie You helped me out very good, now I have a running script, but not the way I want it to be Smilie Hopefully someone else will know how to do Smilie
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