sharkdp/shell-functools

Health v2 · maintenance only

Adoption not part of the score

1245 stars · 52 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

A collection of command-line tools that bring functional programming primitives like map, filter, foldl, sort_by, and take_while to the shell. Commands are written in Python, composable via UNIX pipes, and accept a large library of built-in function arguments such as basename, abspath, replace, and is_dir.

Use cases

• apply a function to every line of shell output
• filter file listings by predicate like is_file or is_dir
• sum or multiply sequences of numbers from the command line
• sort lines by a computed key
• transform filenames with basename, abspath, or string replacements in pipes
• chain higher-order functions over command output

When to choose

• you want map/filter/fold semantics in shell pipelines without writing awk or Python one-liners
• you frequently manipulate filenames and strings in shell scripts
• you prefer composable UNIX-style command-line tools

When to avoid

• you need high-performance processing of very large data streams (Python startup overhead per command)
• you want a full functional programming language rather than shell helpers
• your environment cannot install Python packages

Facets

cli-tool · maturity stable

cli developer-tools file-system parser developer-tools cli windows cross-platform functional-programming shell-tools pipes map-filter-fold python command-line automation linux macos

Member repositories

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