Useful tips for everyday
What OS supports MongoDB? While MongoDB supports a variety of platforms, the following operating systems are recommended for production use on x86_64 architecture: Amazon Linux…
How do you give read and write permissions to a folder in Linux? chmod ugo+rwx foldername to give read, write, and execute to everyone….The command…
What is the default gateway for a VLAN? The default gateway is the first Layer 3 device (such as a router) on the same management…
How do I reset permissions on my Mac? Click your Mac’s hard drive and select the user account that’s experiencing problems. At the bottom of…
What is statistical text analysis? The term text analytics describes a set of linguistic, statistical, and machine learning techniques that model and structure the information…
What is a battery charging circuit? It is a simple method that uses a small constant current to charge the battery during the complete charging…
How do you handle asynchronous responses? By using asynchronous responses, your rates or label requests won’t block the rest of your code, and you can…
When to run a cronjob if there is a lock? Those lock files are used to determine if a script or application is already running…
Is rm recursive? To remove a directory and all its contents, including any subdirectories and files, use the rm command with the recursive option, -r…
What is difference between before and after in database triggers? Before triggers execute before the data has been committed into the database. After triggers execute…