UNIX for Dummies Questions & Answers

I'm looking for a sort command that will sort by zip code first then by last name. (zip code is the last field, last name is first field)

data file looks like this.

Hope Bob 1234 Main ST. Colorado Springs, CO 80920

I was thinking along the lines of:

sort -k9n address.data //for the zip code sort, but do if I do another sort would it screw up the zip code sort?

I'm not at a UNIX machine so I'm doing this off the top of my head otherwise I would just experiment.

Thanks in advance.

Code:

sort -t" " -k9n -k1 file

Thanks, I'll try it tonight!