docker-magento/compose/bin/admin-user-create

#!/usr/bin/env bash

USERNAME="admin"
EMAIL="admin@example.com"
FIRSTNAME="Admin"
LASTNAME="Admin"
PASSWORD="Admin123"

bin/magento admin:user:create \
    --admin-user=${USERNAME} \
    --admin-password=${PASSWORD} \
    --admin-email=${EMAIL} \
    --admin-firstname=${FIRSTNAME} \
    --admin-lastname=${LASTNAME}

if [ $? -eq 0 ]; then
    echo "Username: ${USERNAME}"
    echo "Email: ${EMAIL}"
    echo "Firstname: ${FIRSTNAME}"
    echo "Lastname: ${LASTNAME}"
    echo "Password: ${PASSWORD}"
else
    echo "Error creating admin user."
fi