Answer Posted / p kumar

Setuid:If it is set on an executable file,cause it to run
under the user...
For example:/etc/passwd file is owned by root whici have
only read permision .....It will store all uaers encrypted
password..but users can still change their passwprd using
#passwd command ,,,bcz set uid bit is set for this file,,,
#ls -l /etc/passwd====it will show -wr--------s
#chmod u+s dirname

Stickybit:If it is set on a directory only the owner of a
file can delate the file.......only 4 directories...
/tmp dir iset by sticky bit....bcz any users can create &
delete file....but 2 prevent users from deleting each
others file...
#chmod o+t dirname....

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