Useful tips for everyday
What does chmod mean? The chmod (short for change mode) command is used to manage file system access permissions on Unix and Unix-like systems. There…
How to reverse PCA and reconstruct original variables? How can I reverse PCA and reconstruct original variables from several principal components? ML model + automation…
How to use JavaScript to remote apex controller? Create pages with complex, dynamic behavior that isn’t possible with the standard Visualforce AJAX components. The remote…
How do I reset my iPad 2 if I forgot my Apple ID password? Accounts with two-step verification Go to your Apple ID account page…
How to use sed to delete? To Remove the lines from the source file itself, use the -i option with sed command. If you dont…
How do you calculate cutoff frequency? We can write the cutoff frequency equation for RC filter circuit as: fc = 1 / (2 * π…
What to say to avoid answering a question? 10 English Phrases to Avoid Answering a Question #1 – No comment. #2 – I’m not at…
Can a virus be transferred through USB? An infected computer can spread a virus to a clean USB thumb drive that is inserted. A virus…
Can a desktop computer run on battery? You can absolutely run a desktop on on lithium ion cells at slightly above 12 volts. It’s not…
How do I save a text file as a script? To preserve the script log after each run, save it as a text file: Select…