I have written a script which I have set with the permissions of 4755 whose owner is root and group is root. I am attempting to use it as a way to read my system logs from a webpage. Obviously the final result will be more complex, but here is what I got going on My log file has the following permissions -rw------- root root Huge DATE log.file My script has the permissions of -rwsr-xr-x root root small DATE test.sh My web user is www-data When I su to www-data and run test.sh I get a logfile permission denied. Test.sh is essentially this grep "string" /var/log/log.file My question that make this an setuid question is this. When I make it an setuid I thought it ran the script as if I am its owner. So like I will become root run my script and leave. If this is true and root owns the log file why do I get a permission error Thanks Steven Lamb
