Accidentally deleted 'usr/share' and 'usr/man' folders

H_Almo wrote:

I found folders in my Mackintosh HD folder that I was not familiar with. After recently detecting Malware, I panicked and deleted both the 'usr/share' folder and the 'usr/man' folder too. I'm concerned with how this may affect the operating system of my MacBook. Could someone please explain to me what I can do to either get these back (if that is at all possible) or whether this will be an issue for when I boot up the MacBook or anything else with the operating system. Thank you!

If these folders are still in your trash, you simply Control click on them>Put Back

Local snaps shot are kept on your machine for 24-48 hours you may be able to recover then through your Time Machine local snap shots

About Time Machine local snapshots - Apple Support

At this point you may need to completely erase the drive and install a clean system - unless you have a full Time Machine backup.

Messing around with stuff that people are not familiar with is dangerous.

It is a good thing that in Big Sur you would not have been able to mangle your system like this, as these would have been mounted read-only and you would not be able to delete them.

Boot into Recovery mode

Re-install macOS over top of the existing install

https://support.apple.com/en-us/HT204904

DO NOT reformat the disk, as that would erase all your existing stuff. Just re-install the current operating system over the existing operating system, and the share and man folders will be re-installed.

PS. if you are going to do things like this, then always ALWAYS have a backup