Tar and Gzip 'ing a directory


If I have a directory "scooby", and want to tar, and gzip this, what do I type?

I tried this:

tar -cz scooby


then i tried

tar -cz scooby scooby [for a source and destination]

I can't get it though, I have had various errors, some pertaining to the location (partition) of the saved file (I think).

Will this also keep all the permissions of the files within scooby?

Thanks in advance..........