1. Dropbox won't sync files that you don't have read permissions.

2. You'd better not merge an old Dropbox folder while installing/configuring Dropbox.

3. You'd better not store symbolic links in the Dropbox folder, because the symbolic links will be replaced by the real files/folders when synchronized to other computers.

4. It …

Tips and Traps

1. You can download a Windows 10 Virtual Machine at Get a Windows 10 development environment !

2. winget is the official Windows Package Manager CLI and Chocolatey is a cool community-driven software management tool for Windows.

3. When a file is being synchronized by Dropbox, it might be unaccessible temporarily …

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

To enable NoScript synchronization via Firefox Sync go to about:config (type this in URL bar) and change noscript.sync.enabled to true.

AWK Tutorial

1. For small structured text files, it is suggested that you use the q command to manipulate it.

   For complicated logic, it is suggested that you use a scripting language (e.g., Python) instead. I personally discourage using of awk unless you have a large file (that q cannot …

Performance

1. If there is some block of useless code, the compile is smart enough to ignore it and thus speed up the program.

2. Use the option -O2 to generate optimized code when you are ready to publish your code.

3. Define variables only when needed to avoid the overhead of creating …

About String Functions

1. The uniform random variables generated by VB is pretty good. At least it's acceptable according to the test in R.

2. String functions that return a string can be used with a dollar sign at the end, which is a faster version of the corresponding function.

3. The function …