Magento 2 How to Add Admin User via Command Line

php bin/magento admin:user:create --help

Usage:
  admin:user:create [options]

Options:
      --admin-user=ADMIN-USER                    (Required) Admin user
      --admin-password=ADMIN-PASSWORD            (Required) Admin password
      --admin-email=ADMIN-EMAIL                  (Required) Admin email
      --admin-firstname=ADMIN-FIRSTNAME          (Required) Admin first name
      --admin-lastname=ADMIN-LASTNAME            (Required) Admin last name
      --magento-init-params=MAGENTO-INIT-PARAMS  Add to any command to customize Magento initialization parameters
                                                 For example: "MAGE_MODE=developer&MAGE_DIRS[base][path]=/var/www/example.com&MAGE_DIRS[cache][path]=/var/tmp/cache"
  -h, --help                                     Display this help message
  -q, --quiet                                    Do not output any message
  -V, --version                                  Display this application version
      --ansi                                     Force ANSI output
      --no-ansi                                  Disable ANSI output
  -n, --no-interaction                           Do not ask any interactive question
  -v|vv|vvv, --verbose                           Increase the verbosity of messages: 1 for normal output, 2 for more verbose output and 3 for debug

Help:
  Creates an administrator

php bin/magento admin:user:create --admin-user=mageplaza --admin-password=WeLoveMagento [email protected] --admin-firstname=Mageplaza --admin-lastname=Family

php bin/magento admin:user:create --admin-user=mageplaza --admin-password=WeLoveMagento123 [email protected] --admin-firstname=Mageplaza --admin-lastname=Family

Created Magento administrator user named mageplaza