Miscellaneous

How do I get an exit code in bash? To check the exit code we can simply print the $? special variable in bash. This…

How do I power a Raspberry Pi 4 power supply? The first, recommended and easiest way to power the Raspberry Pi is via the Micro…

What are animation presets in After Effects? Many animation presets don’t contain animation; rather, they contain combinations of effects, transform properties, and so on. A…

Can I replace my iPod battery myself? Fortunately, replacing an MP3 player battery is something that you can do yourself without specialised tools. Do not…

What does Safari passwords are locked mean? Question: Q: why are my safari passwords locked Answer: A: If you are seeing this in Safari/Preferences/Passwords, it…

How do I permanently hide a folder? How to hide files and folders using File Explorer Open File Explorer. Navigate to the file or folder…

Can you add RAM to MacBook Pro 16-inch? The longer answer is nope. The new 16-inch MacBook Pro is not user-upgradable. In fact, we are…

What is the longest word in the dictionary How many letters? 45 letters 1. Pneumonoultramicroscopicsilicovolcanoconiosis (45 letters) Is there a word bigger than Pneumonoultramicroscopicsilicovolcanoconiosis? The…

How do I run a PostgreSQL database locally? Set Up a PostgreSQL Database on Windows Download and install a PostgreSQL server. Add the PostgreSQL bin…

How do I show busy in ICAL? The “Free/Busy” setting is located in the “Calendar share links, view settings, & view history” tab in your…