I am running macOS Monterey version 12.1

uname -a gives:
21.2.0 Darwin Kernel Version 21.2.0: Sun Nov 28 20:28:41 PST 2021; root:xnu-8019.61.5~1/RELEASE_ARM64_T6000 arm64

**groupadd** command is not found.   

It is not preset in */usr/sbin* folder , inspected it as *root*.  

Appreciate any suggestions. Thanks