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The Command Line Murders

github.com Tools, games & demos Computer games Computer games Candidate
Screenshot of github.com captured 2026-07-20
Page preview · captured 2026-07-20

Resurfaced independently across 4 calendar years, with breakout response in 3 of them.

submissions
4
submitters
4
observed span
2014–2023
peak thread · 60 comments
364 pts
latest 20+ return · 2023-07-25
137 pts

Submission timeline

2007–2026

One slot for every year since HN launched. Height is that year's peak points; orange marks a 100+ point or 50+ comment breakout. Select a bar to open its strongest thread.

First comments on top threads

HN comment order

Good fun, I'm going to hope that using ipython still qualifies, and it made things much easier by letting you define functions that join some ad-hoc datasets to look for matches, or read particular files. A similar approach to different puzzles by Peter Norvig[1] Other useful (and perhaps less common) utilities I used were 'q'[2], and the standard unix 'comm(1)'[3] [1] http://nbviewer.jupyter.org/url/norvig.com/ipython/Fred%20Bu... http://norvig.com/sudoku.html [2] https://harelba.github.io/q/ - sqlite text…

shabble·364-point thread·

A lot of the code that I write looks like a crime-scene.

NAFV_P·146-point thread·

Forget everything you learned in school, rookie. Your real training begins today. You want to use your fancy coreutils and crack this case the glamorous way, or do you want to make your arrest quota for the month and keep your job? $ grep -ir confess interviews/ And if that doesn’t work: $ echo “I, John Doe of $address, of sound state of mind confess to the killing of…” >interviews/interview-$RANDOM Take him away, boys!

Solving a murder using grep, sed, and awk! Ok, they actually suggest simpler tools, like head and tail, but it still is pretty fun. Obligatory xkcd reference: https://xkcd.com/208/

The first top-level comment from each of the four biggest threads, in HN’s own order. Excerpts are shortened; open a comment for full context.

Breakout years
3

100+ points or 50+ comments

Total points
650

reference only — not used in Hall rules or ranking

Total comments
127

reference only — not used in Hall rules or ranking

Every submission

DateTitle as submittedByPointsComments
2014-01-14A command-line murder mysteryFirst breakouthodgesmr14647
2016-01-29The Command Line MurdersBest threadcoolvoltage36460
2019-08-29A command-line murder mysterytheastrowolfe31
2023-07-25A command-line murder mysteryLatest 20+ point returnsmartmic13719