Simple script for run unreal tournament linux server

ut-linux-server.sh

#!/bin/bash
# Simple script for run unreal tournament linux server
# required cron
# start automatically at server boot.
#
# Installation: 
# 1. rename script to some unique name.
# 2. Put it in your UT directory.
# 3. Add it to your crontab, for run every minute.
# 
# Possible commands:
# 1. Run without params - start server in current console. Press Ctrl+C few times for interrupt it.
# 2. stop - kill current instance of server and prevent start new for 24 hours.
# 3. start - allow run server. Canceled active stop command.
# 4. status - show current pid of script, which run server, if any.
#
# Configuration:
#	Edit UT_SERVER variable located near file end.
#
# Log files stored in System folder of UT server and called as server.log and server_ucc.log.
#
# Script use replacement system on each restart UT server.
# All new files from folder Pending copied in UT folder.
# So if you need update file SuperMutator.u, which currently used by server, 
# you need place updated version in Pending/System/ folder and restart server from game.
# via Nexgen Controller for example. Server restarted and new files will be copied before it run.
# Mutators like RebootOnNextMap allow do this unnoticeable for players, and even on server a lot players.

if [ "$1" = "stop" ]; then
	touch "$0.stop"
	echo "Start blocked."
	if [ $(pgrep -c "${0##*/}") -gt 1 ]; then
		kill -- -$(pgrep -f -o "${0##*/}")
		echo "Server instance killed."
	fi
	exit
fi

if [ "$1" = "start" ]; then
	if [ -f  "$0.stop" ]; then
		rm "$0.stop"
	fi
	echo "Start allowed. Server will start soon."
	exit
fi

if [ "$1" = "status" ]; then
	if [ $(pgrep -c "${0##*/}") -gt 1 ]; then
	     echo "Server run with pid $(pgrep -o "${0##*/}")"
	else
		echo "Server not run"
	fi
	exit
fi

if [ -f  "$0.stop" ] && [ `find "$0.stop" -mmin -1440` ]; then
   exit
fi

if [ $(pgrep -c "${0##*/}") -gt 1 ]; then
	echo "Another instance of the script is running. Aborting."
	exit
fi

cd ${0%/*}/System

while true; do

if [ "$UT_SERVER" != "" ]
then
	$UT_SERVER >server_ucc.log
	
	cp server.log server_prev.log
	cp server_ucc.log server_ucc_prev.log

	rsync -au ../Pending/ ..
fi

UT_SERVER="./ucc-bin server CTF-Command?game=BotPack.CTFGame?mutator=MapVoteULv1_2.BDBMapVote?MaxPlayers=32 -multihome=85.214.243.170  port=7277 -nohomedir log=server.log"

done