Linux permissions

Hi everyone,
I’m taking the Linux course. In the section “Security and File Permissions” I have a doubt with the meaning of the last one permission. I understood that the first three meaning Owner, Group and Other. What is the meaning of last one?

Thanks in advance.

@mcrotes

That last one is for SUID and SGID , look at this
https://www.tecmint.com/how-to-find-files-with-suid-and-sgid-permissions-in-linux/#:~:text=What%20is%20SUID%20and%20SGID%3F&text=Instead%20of%20the%20normal%20x,GID%20of%20file%20group%20owner.

Hi mcortes,

The screenshot you provided shows examples for calculating permission in octal values only.

So each one shows permissions for Owner, Group, and others.

Thanks @Nasri and @KodeKloud