Witr – Explain why a process is running on your Linux system
Hi HN, I built a small Linux CLI tool called witr (Why Is This Running?). The idea came from a situation most of us have hit: you log into a machine, see a process or port running, and immediately wonder why it exists, who started it, and what is keeping it alive right now. witr traces a process, service, or port back to its origin and responsibility chain and explains it in a way that’s quick to read, especially when you’re debugging under pressure. This is v0.1.0. It’s intentionally small and focused. Feedback, criticism, and edge cases are very welcome. Repo:…
In plain words
Witr is a Linux command-line tool that traces running processes and ports back to their origins, showing who started them and what keeps them running. Designed for system administrators and developers troubleshooting production systems, it presents the responsibility chain in a readable format suitable for debugging under time pressure. The tool is intentionally minimal and focused, currently at version 0.1.0.
written from the facts on this page · September 2026
From the sources
In the maker’s words, at launch
Hi HN, I built a small Linux CLI tool called witr (Why Is This Running?). The idea came from a situation most of us have hit: you log into a machine, see a process or port running, and immediately wonder why it exists, who started it, and what is keeping it alive right now. witr traces a process, service, or port back to its origin and responsibility chain and explains it in a way that’s quick to read, especially when you’re debugging under pressure. This is v0.1.0. It’s intentionally small and focused. Feedback, criticism, and edge cases are very welcome. Repo: https://github.com/pranshuparmar/witr
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