How to lookup a user GUID

You can lookup a users’s GUID using WorkGroup Manager, but what fun is that?

Here are just a few ways you can lookup a GUID

Lookup a single user: 10.7 & 10.8 Only:

sudo /Applications/ -i bobsmith

How handy it would be to have a list of all users and their GUID?

dscl /Search -list /Users GeneratedUID

Above returns all of the sytem users, its cleaner if we omit them:

dscl /Search -list /Users GeneratedUID | grep -v '^_'