Useful tips for everyday
How do you replace spaces with newlines in a text file? A few choices: The classic, use tr : tr ‘ ‘ ‘\n’ < example.…
How do I know if WS2812B is working? Use a magnifying glass. If the little chip looks burnt or any wires are loose inside the…
How do I keep a PNG background transparent in IrfanView? Open the image in IrfanView, and select File, then Save as. When the Save Picture…
What is the difference between Ubuntu 18.04 and 18.04 LTS? LTS stands for Long Term Support. In contrast to normal Ubuntu versions, which are supported…
What type of experiment is a longitudinal study? A longitudinal study, like a cross-sectional one, is observational. So, once again, researchers do not interfere with…
What is included in an executive summary? What is included? An executive summary should summarize the key points of the report. It should restate the…
Should I have multiple databases? Good reasons to create separate databases would be to support different availability requirements or simplify administration. For example if your…
What is the purpose of lock files? File locking is a mechanism that restricts access to a computer file, or to a region of a…
Which oscillator is useful for triangular wave generation? The easiest way to generate a triangle wave is to generate a square wave and then feed…
Do flights Get Cancelled for hurricanes? As Tropical Storm Elsa makes landfall in north Florida, it’s possible that flights could be delayed or canceled because…