magento 2 comes with command line tool, to get list of all commands, run
php bin/magento list
Magento 2 by default run in “production” mode. On this mode, it won’t show any errors, it write to log file in var/logs folder. When you debug a site, its better enable developer mode, so it just display the errors.
php bin/magento deploy:mode:set developer
To set magento 2 to run in production mode
php bin/magento deploy:mode:set production
Here is some other useful commands
php bin/magento setup:upgrade php bin/magento cache:flush php bin/magento setup:static-content:deploy php bin/magento indexer:reindex php bin/magento setup:di:compile
