aix-san-linux

Create new user with default role (staff)

Centos:
# useradd -m username
# passwd username

Note: - -m: create a local home directory on the system for the specified user
          - The account is locked until you assign the usser a password
          - Default directory: /export/home/username

AIX:
# mkuser username
# passwd username

or
# smit user
# passwd username
Note: - Default directory: /home/username

Centos: