Which command in linux can give read and write permissions to a folder?

Question

linux

I’m getting used to the linux mint operating system and making a website on wordpress and I don’t quite understand how I can give non-read and write rights in the root directory of the opt file system inside it in the lamm folder.

Answer 1

Chmod
It also makes sense to look at:
Chown
Chgrp
Umask
And specifically for wordpress development, it is very convenient to use solutions of this type: Varying Vagrant Vagrants

Answer 2

https://ru.m.wikipedia.org/wiki/Chmod