Here are my personal notes regarding these special perms :

Octal perm : 4000 (chmod +s ) SUID Other users execute this file as owner of file Octal perm: 2000 (chmod +g ) GUID Other users execute this as group of the file/dir (It can be applyied to directories ) Ocatl perm: 1000 Sticky bit (Ensuring that users cannot delete other users files in a directory)

SUID : chmod u+s file GUID: chmod u+g dir Sticky bit: chmod u+f file/dir

Best regards,

Silviu Hutanu ------------------------------

Nepatec Soft SRL - it consulting & software N. Titulescu 4 500010 Brasov, Romania tel/fax: +40 (0)368 003 100 www.nepatec.de

On Fri, Jul 9, 2010 at 3:03 PM, Agnello George agnello.dsouza@gmail.comwrote:

i had a small query , whant is the difference between stickybit SUID and SGID , is there any proper site where i can get a clear understanding .

-- Regards Agnello D'souza

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