Ben Chuanlong Du's Blog

And let it direct your passion with reason.

Tips on the find command in Linux

It is suggested that you use Python (the pathlib module), ripgrep, fselect or osquery (currently have some bugs) instead of find to locate files.

  • The Python module pathlib is the most suitable one for relatively complex jobs.
  • ripgrep is a more user-friendly alternative to find.
  • Both fselect and osquery support …

Editing PDF Files

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

Type Name Comments
Web Tools DocuSign - Free for occassional use
- No credit card required
- Support checkmarks and signatures
Free PDF Convert - Great for convert PDF files …

My Docker Images

Most of my Docker images have different variants (corresponding to tags latest, next, etc) for different use cases. And each tag might have histocial versions with the pattern mmddhh (mm, dd and hh stand for the month, day and hour) for fallback if a tag …

Make Traffic Follow Through Proxies Using ProxyChains



wajig install proxychains4


brew install proxychains-ng

Notice that the proxychains-ng installed using Homebrew on Mac does not work well right now (as of 2019-03-07). An alternative way is to use proxychains via Docker on Mac. The Docker image dclong/jupyterhub-ds has proxychains (NOT proxychains-ng) installed.


proxychains4 …