A script to find out out information and do a ports can of everything on your network

laninfo.sh

#!/bin/bash

# get local ip from ifconfig

localIP=($(sudo ifconfig | grep "inet " | awk '{print $2}' | awk 'END{print}' ))

# affix two wildcards to the end of local IP

startIP=`echo $localIP | cut -d "." -f1-3`

searchIP=`echo "$startIP.*"`

echo "search IP is: $searchIP"

# get IPs running on the local network

echo "Scanning for IPs (This may take a while)"

networkIPs=($(nmap -sP $searchIP | grep -E '\d{2,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}' | awk '{print $5}'))

# Find details of stuff on network

for index in ${!networkIPs[*]}; do
		echo "Device found on: ${networkIPs[$index]}"
		sudo nmap -v -O ${networkIPs[$index]} | grep -E "PORT|^\d{1,}/tcp|Running|MAC"
		printf "\n"
done