How to Create a new User from Terminal on Mac OSX

This Post Show How-to Create a New User from Command Line on Mac OSX.

1. Open a Terminal Session
2. Find an Unset Users ID:
   

   usermaxid=$(dscl . -list /Users UniqueID | awk '{print $2}' | sort -ug | tail -1)
   usernewid=$((usermaxid+1))

3. Next Find the ID of the Group for the User:
   

   groupid=$(dscl . -read /Groups/<groupName> PrimaryGroupID | perl -wlne 'print $1 if/(\d+)/')

4. Proceed to Create User and Set the Password:
   

   dscl . -create /Users/newuser
   dscl . -create /Users/newuser UserShell /bin/bash
   dscl . -create /Users/newuser RealName "Lucius Q. User"
   dscl . -create /Users/newuser UniqueID $usernewid
   dscl . -create /Users/newuser PrimaryGroupID $groupid
   dscl . -create /Users/newuser NFSHomeDirectory /Users/luser
   dscl . -passwd /Users/newuser password

5. Create the User's Directories Tree:
   

   cp -R /System/Library/User\ Template/English.lproj /Users/newuser
   chown -R newuser:staff /Users/newuser
   

   
   
6. To Add the New User to Admin Group:
   

   dscl . -append /Groups/admin GroupMembership luser
   

Bless The Lord!