File and directory permission

r  4
w  2
x  1

extended attributes
SUID 4
SGID 2
Stickybit 1

to set suid
chmod 4664 test

to set sgid
chmod 2664 test

to set sticky bit
chmod 1664 testr  4
w  2
x  1

extended attributes
SUID 4
SGID 2
Stickybit 1

to set suid
chmod 4664 test

to set sgid
chmod 2664 test

to set sticky bit
chmod 1664 test