Ben Chuanlong Du's Blog

It is never too late to learn.

Incognito Mode for Browsers

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

The incognito mode is important for browsers for a few reasons.

  1. Testing purpose
  2. Some apps (e.g., secure emails) can only be used in incognito mode.

Chrome

Firefox

Format a Flash Drive in a Linux Virtual Machine

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

  1. Install VirtualBox.

  2. Create a Ubuntu virtual machine.

  3. Install extension package.

  4. enable USB support

  5. select the flash drive you want to format to connect to the VM.

  6. use linux commands to format …

Command Line Tools for Mac File System

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

Note: When work both in Linux and macOS, a painful burden to use command-line is to remember subtle differences between Linux commands and macOS commands. A a matter of fact, GNU …

Tips on AnBox

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

  1. AnBox CANNOT be run on macOS.

  2. There was a limited support of ARM-only app on x86-based Linux OS. However, Android 11+ images are capable of running ARM apps on x86-based machines …

Copy Pictures from an Android Phone to a Computer

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

You have to have a SSH server installed on the Android phone …

Hive SQL

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

  1. Hive is case-insensitive, both keywords and functions

  2. You can use both double and single quotes for strings

  3. use = rather than == for equality comparison but it seems that == also works

  4. use % rather …