Magento2 – cheat sheet

Magento2 – cheat sheet

Magento2 commands

php bin/magento maintenance:enable 
php bin/magento setup:upgrade 
php bin/magento setup:di:compile 
php bin/magento setup:static-content:deploy 
php bin/magento setup:static-content:deploy 
php bin/magento cache:flush 
php bin/magento maintenance:disable 
php bin/magento cache:enable 

Store_view specific command,
php bin/magento setup:static-content:deploy --language en_US; php bin/magento setup:static-content:deploy --language en_CA; 

Single command for all, 
sudo rm -rf var/cache/* var/composer_home/* generated/* var/page_cache/* var/view_preprocessed/* pub/static/* var/di && php bin/magento setup:upgrade && php bin/magento cache:flush; 
To update magento2 admin password
UPDATE admin_user SET PASSWORD = CONCAT(SHA2(CONCAT(@salt, 'admin@123'), 256), ':', @salt, ':1') WHERE username = 'admin'; 
Log variables in Magento2
$writer = new \Zend\Log\Writer\Stream(BP . '/var/log/file_name.log');
$logger = new \Zend\Log\Logger();
$logger->info('Add variable or text here to log');
$debugBackTrace = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS);
foreach ($debugBackTrace as $item) {
    echo @$item['class'].@$item['type'].@$item['function']."\n";
Maintenance mode commands
php bin/magento maintenance:enable
php bin/magento maintenance:allow-ips
php bin/magento maintenance:disable
Steps for upgrade 
• php bin/magento --version
• ownership should be given to all directories vagrant:vagrant
• bin/magento maintenance:enable
• copy composer.json composer.lock
• composer install
• rm -rf var/cache var/page_cache/* var/generation/*
• php bin/magento setup:upgrade
• bin/magento maintenance:disable

Uninstall Magento setup:

bin/magento setup:uninstall

Reinstall Magento setup:

php bin/magento setup:install –admin-user=”admin” –admin-firstname=”Nitin” –admin-lastname=”kediyal” –admin-email=”” –admin-password=’admin@123′ –db-host=”″ –db-name=”db_name_here” –db-user=” db_user_here ” –db-password=’ db_password_here ‘ –backend-frontname=”admin” -vvvv

Create Admin user:

php bin/magento admin:user:create

Magento2 cron install

php bin/magento cron:install
crontab -l

php bin/magento cron:remove
The object manager has the following responsibilities:
Object creation in factories and proxies.
Implementing the singleton pattern by returning the same shared instance of a class when requested.
Dependency management by instantiating the preferred class when a constructor requests its interface.
Automatically instantiating parameters in class constructors.

Dependency injection
Dependency Injection is a design pattern that allows an object A to declare its dependencies to an external object B that supplies those dependencies. The dependencies declared by A are usually class interfaces and the dependencies B provides are the concrete implementations for those interfaces.

Dependency inversion principle
This means that your high level classes should use the interfaces of low level classes instead of working with them directly
Using interfaces in your code reduces the risk of incompatibility bugs when Magento changes the underlying implementation of those interfaces
Magento2 System requirements 

Do you like it! please also add your cheat sheet data in the comment section below…

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