cidrsubnet
Implementation of the cidrsubnet function used by terraform. Explanation follows here - https://www.terraform.io/docs/configuration/functions/cidrsubnet.html
Installation
If a cli tool is required:
wget https://raw.githubusercontent.com/DannyLee12/cidrsubnet/master/cidrsubnet.py
chmod +x cidrsubnet.py
mv cidrsubnet.py /usr/local/bin/cidrsubnet
Usage
cidrsubnet prefix newbits netnum
> cidrsubnet "172.16.0.0/12" 4 2
172.18.0.0/16
> cidrsubnet "10.1.2.0/24" 4 15
10.1.2.240/28