Creating users on OSX 10.5 and up from the command line

Question

Is this even possible anymore? I've seen tutorials which use niutil (not available on my Mac) and dscl.

My output from dscl is the following though, kind of odd:

neutron:~ username$ sudo dscl / -create /Users/deadline
Data source (/) is not valid.

Answer 1

/ isn't a valid node name (think network host names); for the local host's default store you can use ., or use localhost to specify the store.

$ sudo dscl . -create /Users/deadline                       # the common way
$ sudo dscl localhost -create /Local/Default/Users/deadline # same thing