eBay's TSV utilities

Documented performance studies show tools like tsv-filter and tsv-join significantly outperform traditional Unix utilities like awk and sort for large tabular data, with optimizations like streaming algorithms and in-memory lookups.

Designed to follow Unix conventions, tools read from files or stdin and write to stdout, enabling seamless chaining with existing command-line workflows and complementing tools like cut and grep.

Offers specialized utilities for complex tasks such as weighted sampling in tsv-sample, statistical summaries with grouping in tsv-summarize, and header-aware processing across multiple files, reducing script complexity.

Supports named fields, wildcard matching, and bash completion for faster command construction, and includes utilities like keep-header to simplify common tasks like sorting with headers intact.