csv2parquet is a CLI tool to quickly convert one or more csv files to parquet, using duckdb

First step is to install globally with:

npm install csv2parquet -g

Usage:

csv2parquet [input] [outputfile]

Input can defined as a GLOB pattern.

Example: Take all files from subdirectories in ./files that start with total_count_ and end with .csv and output to the total_counts.parquet file

csv2parquet ./files/*/total_count_*.csv total_counts.parquet