Ben Chuanlong Du's Blog

It is never too late to learn.

Repair a Flat Tire

Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!

Tire sealant and tire plug are 2 relative easy (temporary) repairs to flat tires. There are many different types of tire plug kit. The sticky string tire plug is preferred and …

Flat Tire on Rivian

Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!

General Tips on Flat Tire

  1. Rivian provides a tire sealant kit when you purchase or lease a Rivian vehicle. You can order additional ones from Rivian Gear Shop or from Amazon …

Tips on Car Tires

Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!

Tube-type vs Tubeless

  1. Modern tires are tubeless.

Run-flat Tires

  1. Run-flat tires can be a good option if you need the peace of mind of being able to drive a short distance …

Maintain Garage Doors

Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!

How To Lube A Garage Door

Garage Door Lubricant

Garage Door Opens But Won't Close

  1. clean sensors
  2. try to align sensors

make sure that sensors show solid green lights

check trails …

Extracting Data from PDF Files

Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!

Sometimes, a PDF file is corrupted or encrypted making it hard to extract data from it directly. In this case, you can convert a PDF page to an image first and …

The ripgrep Command Is a Better Alternative to the find Command

Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!

Installation on Debian/Ubuntu Based Linux Distributions

wajig install ripgrep 

Installation on macOS

brew install ripgrep 

List Files

There are 2 ways to list files using ripgrep. The first way is file name (globbing pattern) based and the second way is file content (regex pattern) based.