Linux permissions

Linux Basics Course
#1

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?

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Thanks in advance.

#3

@mcrotes

That last one is for SUID and SGID , look at this
How to Find Files With SUID and SGID Permissions in Linux.

#4

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.

#5

Thanks @Nasri and @Ayman