Re:SUDO Commands (Score 1)

Is that the sticky bit?

Not quite. setuid/setgid, when applied to a directory, make files created within that directory inherit the user/group of the directory, instead of the user/default group of their creator. the setuid bit generally doesn't work on directories (for rather obvious security reasons), unless a particular flag is set against the file system in /etc/fstab.

The sticky bit is used to secure directories like /tmp, and prevents you from removing files from the directory -- even if you have write permissions -- unless you are the owner of the file.