Mac OS X Tiger in a Nutshell

Listing Groups with nidump

Use nidump to confirm that the new group was created correctly. To list groups with nidump, pass in the format (in this case, the group file) and the domain (., the local domain):

    $ nidump group . | grep writers
    writers:*:5005:bjepson,rothman

Because you can use nireport to dump any directory, you could also use it to see this information:

    $ nireport . /groups name passwd gid users | grep writers
    writers *       5005    bjepson,rothman