This post contains a list of good explanations of LeetCode questions found in various places.

Professional video editing is usually done in Adobe Premiere or Final Cut Pro. However, for simple video editing tasks, such as cutting one segment out of a long video, or cropping the frame to a smaller size, etc., it is not necessary to use these bulky software, let alone they are quite expensive. Fortunately, ffmpeg is a free but powerful tool to solve these video editing tasks.

This article serves as a cookbook for frequently used video editing tasks using ffmpeg. It will be updated as new recipes emerges.

This article explains how to turn off screen in Linux using command line.

This article introduces a useful Linux command tee.

This article contains various Linux tips. I will add more content from time to time. If this article grows too large, I may split it into several different articles with some categorization.