Ben Chuanlong Du's Blog

It is never too late to learn.

Manage Python Projects Using uv

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

Installation

curl -LsSf https://astral.sh/uv/install.sh | sh

curl -LsSf https://astral.sh/uv/install.sh | env UV_INSTALL_DIR="/usr/local/bin" sh

Usage

Ad-hoc Python Shell & Scripts

  1. You can …

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.

Prompt Engineering for LLM Tools

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

Tips and Traps

  1. set temporature

  2. give some examples

  3. leverage built tools provided by LLM products. For example, Google AI Studio provides tools

    • grounding with google search, etc.

  4. A single comprehensive prompt …

Fix Shell Commands Using fc

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

fzf.history is a better alternative to fc's core functionality (edit and re-execute command).

Tips & Traps

  1. In Linux shells like Bash and Zsh, fc is a built-in command that stands …