https://www.chmodcalculator.net/
CHMOD Calculator Linux Permission Generator
Simplify Linux file and directory permissions with the Chmod Calculator. Easily calculate and manage CHMOD settings for user, group, and public access in a...
chmod calculatorlinuxpermissiongenerator
https://www.tweaking4all.com/software/linux-software/chmod-calculator/
Tweaking4All.com - Chmod Calculator - Set file permission with chmod
Nov 29, 2018 - Yet another chmod calculator to help you with determining the proper value to use when assigning access rights to files or directories with chmod.
chmod calculatorsetfilepermission