Ben Chuanlong Du's Blog

It is never too late to learn.

Generating Completions Script Using crazy-complete

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

There are many tools for generating completion scripts for shell languages (bash, zsh, fish, etc), crazy-complete is one of the best among such tools.

ldc -h | crazy-complete --input-type=help …

Tips on fd

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

Tips & Traps

  1. fd is much faster compared to find.

Installation

wajig install fd-find

The install binary is fdfind.

Example Usages

  1. Find all directories under $dir.

    fdfind --type d . $dir
    
  2. Find all …

Get OS and Architecture Information in Shell

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

Command Description
uname -a The full info of the machine.
uname The type of OS, e.g., Linux, Darwin, etc.
uname -m The architecture of the machine, e.g., x86_64, etc …

Rust and Spark

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

The simplest and best way is to leverage pandas_udf in PySpark. In the pandas UDF, you can call subprocess.run to run any shell command and capture its output.

from pathlib …