/home/cs2d -- root of 1st server
/home/cs2d_2 -- root of 2nd server
/home/cs2d_3 -- root of 3rd server

/home/scripts/auto.sh -- The bash script to launch the 1st server and check if it is running.
/home/scripts/auto2.sh -- The bash script to launch the 2nd server and check if it is running.
/home/scripts/auto3.sh -- The bash script to launch the 3rd server and check if it is running.

Notice: As he mentioned don't run as the user root. My script doesn't actually even though you see "root" path in it. I actually just placed it there to prevent anyone from accessing those files and directories. When a normal user account tries to access these files or folders they'll get a "Permission denied!", so that's just why I put them there for added security. But in general you can place these almost anywhere, so feel free to change the paths in the scripts at will.

Create these Bash scripts that are in bold below and don't forget to chmod them to make them executable by the following command.

chmod +x /root/ir.sh && chmod +x /root/iw.sh && chmod +x /root/del_serv.sh && chmod +x /root/serv.sh && chmod +x /root/_serv.sh

/root/del_serv.sh (Deletes all your CS2D servers from the U.S.G.N. server list.)

#!/bin/bash
kill -p -s 9 `pidof cs2d_dedicated`

/root/_serv.sh

#!/bin/bash
t0='cs2d'
t1='The game server'
t2='create'
t3='terminate'
t4='_dedicated'
t5=' '$t2'd.'
t6=' '$t3'd.'
t7='with corresponding pattern "'
t8=' has been'
t9='(s) '
t10='Invalid input arguments. [Error Code: '
t11=' via method '
o=/dev/null
g=/usr/games/
n=nohup
a=$($n "$g$t0/$t0$t4" > "$o" 2>&1 &)
e=echo
r=eval
p=pkill
k=kill
i=pidof' '
if [ "$1" == "$t2" ]; then
        $r "$a"
        $e "$t1$t8$t5"
elif [ "$1" == "$t3" ] && [ -n "$2" ] && [ -n "$3" ]; then
        if [ "$3" == "1" ]; then
                $p -f $2/$t0$t4
                $e "$t1$t9$t7$2\"$t8$t6"$t11"1."
        elif [ "$3" == "2" ]; then
                $k -p -s 9 `$i$t0$t4`
                $e "$t1$t9$t7$t0$t4\"$t8$t6"$t11"2."
        else
                $e $t10"2]"
        fi
else
        $e $t10"1]"
fi

/root/serv.sh (Creates a CS2D server for you.)

nohup /usr/games/cs2d/cs2d_dedicated > /dev/null 2>&1 &

/root/ir.sh (Checks if your server(s) are running.)

#!/bin/bash -e
p="[c]s2d_dedicated"
i=" is "
r="running"
s="stopped"
c=/root/serv.sh
o=/root/iw.sh
e=echo
x=grep
while true;do
	if (ps aux|grep $p>/dev/null);then
		if [ "$($o | $x '0')" ]; then
			g=${p//[/-};d=${g//]/-};v=$($e "$d$i$r."|sed 's/[\-]//g');$e $v
		elif [ "$($o | $x '1')" ]; then
			g=${p//[/-};d=${g//]/-};v=$($e "$d$i$s."|sed 's/[\-]//g');$e $v
			($e $c)|parallel
		fi
	else
		g=${p//[/-};d=${g//]/-};v=$($e "$d$i$s."|sed 's/[\-]//g');$e $v
		($e $c)|parallel
	fi;sleep 11;clear
done

/root/iw.sh (Checks if your CS2D server(s) are reachable.)

#!/bin/bash -e
a=awk
n=nc
g=grep
e=echo
c=cat
o=/root/on.out
s="CS2D server(s) are "
d="down."
r="running."
if [ -z "$1" ]; then
	p=1337
else
	p=$1
fi
$n -kvzuw 1 localhost $p 1&> $o
# $c $o | $a '{print $5}' < $o
if [ "$($g 'open' $o)" ]; then
	$e "$s$r - $?"
else
	$e "$s$d - $?"
fi

There's more to it though. You need to edit your /etc/rc.local file in order to make the initial Bash script to launch on startup of the actual PC server which makes this setup more persistant.

#!/bin/sh -e
#
# rc.local
#
# This script is executed at the end of each multiuser runlevel.
# Make sure that the script will "exit 0" on success or any other
# value on error.
#
# In order to enable or disable this script just change the execution
# bits.
#
# By default this script does nothing.

nohup /root/ir.sh &
exit 0