Minecraft Starting Script

#!/bin/sh
COMMAND="$1"
RUNNING=""
su minecraft -c "touch /media/minecraft/status"
RUNNING=$(cat /media/minecraft/status)

if [ "$COMMAND" == "start" ]; then
        if  [ "$RUNNING" == "running" ]; then
                echo "minecraft is already running"
        else
                echo "Starting Server"
                echo "running" > /media/minecraft/status
                su minecraft -c "screen -dmS minecraft"
                su minecraft -c "screen -S minecraft -p 0 -X stuff '/media/minecraft/ServerStart.sh\n'"
                echo "Server Started"
        fi
elif [ "$COMMAND" == "connect" ]; then
        if  [ "$RUNNING" == "running" ]; then
                #echo "connect"
                su minecraft -c "screen -x minecraft"
        else
                echo "Minecraft Server is not Running"
        fi
elif [ "$COMMAND" == "update" ]; then
        if  [ "$RUNNING" == "running" ]; then
                echo "minecraft server is still running please stop server before proceeding"
        else
                #echo "update"
                echo "enter url:"
                read URL
                #echo "your url is: $URL"
                #/media/minecraft/update.sh $URL
                cd /media/minecraft
                rm /media/minecraft/FTBInfinityServer.zip
                wget $URL
                cp /media/minecraft/config/agricraft/Configuration.cfg /media/minecraft/config/agricraft/Configuration.cfg.bak
                cp /media/minecraft/eula.txt /media/minecraft/eula.txt.bak
                cp /media/minecraft/ServerStart.sh /media/minecraft/ServerStart.sh.bak
                rm -rf /media/minecraft/mods/*
                unzip -o /media/minecraft/FTBInfinityServer.zip
                /media/minecraft/FTBInstall.sh
                cp /media/minecraft/config/agricraft/Configuration.cfg.bak /media/minecraft/config/agricraft/Configuration.cfg
                cp /media/minecraft/eula.txt.bak /media/minecraft/eula.txt
                cp /media/minecraft/ServerStart.sh.bak /media/minecraft/ServerStart.sh
        fi
elif [ "$COMMAND" == "stop" ]; then
        if  [ "$RUNNING" == "running" ]; then
                su minecraft -c "screen -x minecraft -p 0 -X stuff 'stop\n'"
                sleep 5
                su minecraft -c "screen -x minecraft -p 0 -X stuff 'exit\n'"
                echo "Server has been shutdown"
                #echo "stop"
                echo "stopped" > /media/minecraft/status
        else
                echo "minecraft server is not running"
        fi
elif [ "$COMMAND" == "status" ]; then
        if  [ "$RUNNING" == "running" ]; then
                echo "Server is running"
        else
                echo "Server is not running"
        fi
elif    [ "$COMMAND" == "restart" ]; then
        if  [ "$RUNNING" == "running" ]; then
                echo "Restarting Server"
                su minecraft -c "screen -x minecraft -p 0 -X stuff 'stop\n'"
                sleep 5
                su minecraft -c "screen -x minecraft -p 0 -X stuff 'exit\n'"
                #echo "stop"
                echo "stopped" > /media/minecraft/status
                echo "Server Shutdown Starting server again"
                sleep 5
                echo "running" > /media/minecraft/status
                su minecraft -c "screen -dmS minecraft"
                su minecraft -c "screen -S minecraft -p 0 -X stuff '/media/minecraft/ServerStart.sh\n'"
                echo "Server Started"
        else
                echo "Server is not running, starting server"
                echo "running" > /media/minecraft/status
                su minecraft -c "screen -dmS minecraft"
                su minecraft -c "screen -S minecraft -p 0 -X stuff '/media/minecraft/ServerStart.sh\n'"
                echo "Server Started"
        fi
else
        echo "Valid commands are: start stop restart status connect update"
fi