Get all MAC address of Windows System

###Script Starts here###
#Developed By Krunal Patel
#Script Works in Windows System Only
import os
import re
a = os.popen("getmac")
count = "1"
for value in a.readlines():
    m = re.search('[\w][\w]-[\w][\w]-[\w][\w]-[\w][\w]-[\w][\w]-[\w][\w]',value)
    if m:
        print ("MAC Address " + "%s" %count + " = " +"%s" %m.group(0))
        count = int(count) + 1
    else:
        continue
a.close()

###Script Ends Here###

This will give output as per highlighted in yellow marker in below screenshot.

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Bash script to get hostname or ip address from /etc/hosts file, if not add to /etc/hosts file

#!/bin/bash
######Developed By - Krunal Patel(Linux Admin)#####
getent hosts $1 | grep $1
if [ $? == 0 ]; then
echo "hostname or ip address " {$1} " exists in /etc/hosts file"
else
read -p "please enter hostname to be added in /etc/hosts file : " hos
read -p "please enter ip address to be added in /etc/hosts file for $hos : " ipa
echo "$ipa $hos" >> /etc/hosts
fi
######Copyright © Krunal Patel (Shell Script Developer)######