Useful tips for everyday
Can planes carry boats? Yes. During and after WW2 several aircraft were converted to serve as “Dumbo” aircraft, dropping boats or rafts near people in…
What is stdout Fileno? STDOUT_FILENO is an integer file descriptor (actually, the integer 1). You might use it for write syscall. The relation between the…
Can Excel pull data from a database? By using Microsoft Query to retrieve data from your corporate databases and files, you don’t have to retype…
What is proper test for endianness? Create an integer, and read its first byte (least significant byte). If that byte is 1, then the system…
What are dictionaries in data structures? A dictionary is defined as a general-purpose data structure for storing a group of objects. A dictionary is associated…
How to automatically copy files when USB drive connected? Make a batch file to run vb script and file.bat. Type the following code in the…
What is PHP RCE? The vulnerability is a remote code execution (RCE) in PHP 7, the newer branch of PHP, the most common programming language…
Why is my render speed slow? Re: Slow Rendering speed, Low CPU/GPU, 4K, NR If you’re seeing slow performance without GPU or CPU load then…
How far does Bluetooth low energy reach? Radio interface Technical specification Bluetooth Basic Rate/Enhanced Data Rate technology Distance/range (theoretical max.) 100 m (330 ft) Over…
How to know if a command is not found in Bash? If not, it will see if there’s an executable command /usr/bin/foo and if not…