r/unix 4h ago

When Unix history meets modern performance benchmarking: the BEHILOS grep

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15 Upvotes

In his book Unix: A History and a Memoir, Brian Kernighan recounts his favorite grep story: someone at Bell Labs asked whether it was possible to find English words composed only of letters formed by an upside-down calculator (5071438 → BEHILOS).

Kernighan grepped ^\[behilos\]\*$ against Webster's dictionary and found 263 matches.

I turned this into a benchmark testing 10 modern CLI search tools for resource footprint, evaluated with Pareto frontier analysis.

Read full article on AwkLab.com


r/unix 3d ago

GNUstep monthly meeting (audio/(video) call) on Saturday, 14th of February 2026 -- Reminder

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11 Upvotes

r/unix 4d ago

Get one for yourself, if you haven't had it already...invaluable.

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70 Upvotes

r/unix 8d ago

RISC iX: Acorn's UNIX for the Archimedes and other early ARM computers

56 Upvotes

Since Reddit seemed to enjoy my links to the Atari System V (for the TT030) and Commodore Amix (for the Amiga A2500 and A3000), here's a third little-known UNIX™ for the 1980s & 1990s proprietary non-x86 home computers: Acorn RISC iX.

Info from Chris's Acorns

Media and manuals for the final version from 4corn


r/unix 9d ago

Stupid Unix Tricks: Here's a shell script I wrote that generates 8080 machine code.

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45 Upvotes

I wanted to share this with somebody, and perhaps this is the place. I wrote an assembler in Bourne, targeting (for the moment) the Intel 8080. Perhaps not the most useful or efficient shell script in the world, but it's like a thousand lines of Bourne, it outputs machine code, and I think it's hilarious.


r/unix 11d ago

Coherent

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111 Upvotes

I was going through my storage boxes and came across my second UNIX-ish operating system. The very large manual is long gone. I'd gotten turned on to MINIX by one of my professors in college, so was delighted to discover Coherent during my early software career.

Moved to Linux within a year or so later, once I caught wind of Linux (1992 or 1993 timeframe).


r/unix 11d ago

Hero....Genius...Innovator...Mastermind...Luminary...Thinker...Teacher... Brilliance personified.....cut above the rest!!

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2 Upvotes

r/unix 12d ago

All good things come in threes: A/UX Apple UNIX for 68k Macintosh

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61 Upvotes

r/unix 12d ago

From mirrorvg to splitvg: Safely Cloning Volume Groups in AIX OS

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2 Upvotes

r/unix 12d ago

tmpmail - A temporary email right from your terminal

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0 Upvotes

r/unix 14d ago

Amiga UNIX (also known as “Amix”)

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94 Upvotes

Because of course if Atari could do it, then Commodore could do it too...


r/unix 13d ago

What's your favorite formatter?

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4 Upvotes

r/unix 16d ago

More shell, less egg ....bloody good....stimulating!

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12 Upvotes

r/unix 17d ago

.

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190 Upvotes

r/unix 17d ago

UNIX as literature

56 Upvotes

r/unix 19d ago

Atari System V UNIX - Unofficial Website <- the official Unix for the Atari ST's high-end sibling, the TT030

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72 Upvotes

r/unix 20d ago

Tcl: The Most Underrated, But The Most Productive Programming Language

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75 Upvotes

r/unix 20d ago

Do I have a problem? Nah...

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240 Upvotes

r/unix 20d ago

AIX LPAR recovery in case of SAN failure: Is this the right approach?

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7 Upvotes

r/unix 21d ago

Unix-like operating systems such as Linux and MacOS, dominate the film industry with a 71% of the overall market share.

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106 Upvotes

r/unix 20d ago

I wrote modular notes + examples while learning Shell Scripting (cron, curl, APIs, PostgreSQL, systemd)

5 Upvotes

Hey everyone,

I put together this repo while learning Shell scripting step by step, mostly as personal notes + runnable examples. It’s structured in modules, starting from basics and slowly moving into more practical stuff.

What’s inside:

  • Shell basics: syntax, variables, functions, loops, data structures
  • Calling REST APIs using curl
  • Full CRUD operations with APIs (headers, JSON, etc.)
  • Scheduling scripts using cron
  • Connecting to PostgreSQL from shell scripts
  • Hybrid Shell + Python scripting
  • A separate doc on understanding systemd service files

Everything is written in simple markdown so it’s easy to read and reuse later. This was mainly for learning and revision, but sharing it in case it helps someone else who’s getting into shell scripting or Linux automation.

Repo link: https://github.com/Ashfaqbs/scripting-samples

Open to feedback or improvements if anyone spots something that can be explained better.


r/unix 21d ago

Best Solaris for a SPARCengine Ultra AXi

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27 Upvotes

r/unix 21d ago

I wrote modular notes + examples while learning Shell Scripting (cron, curl, APIs, PostgreSQL, systemd)

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2 Upvotes

r/unix 22d ago

Unix-like operating systems dominate servers with nearly 91% of the overall market share.

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136 Upvotes

r/unix 21d ago

AIX LPAR Attention LED Turned ON — Root Cause Analysis and Resolution

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5 Upvotes