What Is S in Linux?

Setuid is a Linux file permission setting that allows a user to execute that file or program with the permission of the owner of that file. … If you look at the permissions level of the ‘sudo’ executable, you can see the ‘s’ in the permissions for the user where normally there would be an ‘x’.

What does S mean in Linux?

s (setuid) means set user ID upon execution. If setuid bit turned on a file, user executing that executable file gets the permissions of the individual or group that owns the file.

What is %s in Linux?

There is no specific meaning for -s in Linux commands, it is entirely up to the author of the program to assign. You can always find out by reviewing the man command for the terminal program you want to know about: $man ls.