Difference between s & S in setuid in UNIX

UNIX for Advanced & Expert Users
1

Hi,

what is the difference btwn s and S in setuid , access permissions.

I have to make to change the access permissions of a file to rwsr_xr_r

but if i type in 4655 it changes the file to rwSr_xr_r .

How can I make this change ?
Please suggest.

2

To make this setuid executable you have to say,
chmod 4700 executable

Also,
s - setuid and executable
S- setuid and not-executable,

Thanks
Nagarajan G

3

Thanks a lot. It worked.