[SOLVED] SUID capital S

drManhattan · 05-15-2011, 11:05 AM

Hi

I set SUID on some script and I see that there is small letter s but on some other files I see capital S.

Small s.

Code:

-rwsr--r--  1 jakubn jakubn  6987 2010-12-26 21:30 opers_raports.txt

capital S

Code:

-rwSr--r--  1 jakubn jakubn  6987 2010-12-26 21:30 opers_raports.txt

What is the difference between s and S in SUID ?

MTK358 · 05-15-2011, 11:28 AM

The S is lowercase when the executable bit is set, and uppercase if not.

drManhattan · 05-15-2011, 11:33 AM

This I already know.
But what it means in the context of file system perms ?

AlucardZero · 05-15-2011, 11:39 AM

When the S is capital, the file is setuid but not executable. When it's lowercase, it's setuid and executable. Those are the filesystem perms.

I don't get what you don't get.

MTK358 · 05-15-2011, 11:40 AM

Quote:

Originally Posted by AlucardZero

When the S is capital, the file is setuid but not executable. When it's lowercase, it's setuid and executable. Those are the filesystem perms.

That's exactly what I said, and there isn't really anything more to explain.