Create me bash script for centos 7 or ubuntu 16

Hello, i'm an expert IT with more 15 years of experience in IT industry . i'm certified Cisco networking professional 300-100 and 300-115 and Linux professional lpi 101, 102 and red hat certified system administrator and VMware Certified Professional  4, 5,5.5 and Data Center and Microsoft System administrateur /Engineer  ranging from 2003 to 2012 .  alerdy done a script who do squid with all ip and openvpn . ping me

hi how are you, i have a script already can share with you, just need edit per your requirements. thanks good luck