---
title: "Meaning & Key Takeaway of: Those who do not understand Unix are…"
description: "\"Those who do not understand Unix are condemned to reinvent it, poorly.\" — Henry Spencer"
image: "https://sms4smile.com/quotes/i/3de/henry-spencer-36503_funny_those-who-do-not-understand-unix-are-con_2943883.png"
---

#  Those who do not understand Unix are condemned to reinvent…

![“Those who do not understand Unix are condemned to reinvent it, poorly.” quote by Henry Spencer](https://sms4smile.com/quotes/i/3de/henry-spencer-36503_funny_those-who-do-not-understand-unix-are-con_2943883.png)   [Download](https://sms4smile.com/quotes/i/3de/henry-spencer-36503_funny_those-who-do-not-understand-unix-are-con_2943883.png) [Open image](https://sms4smile.com/quotes/i/3de/henry-spencer-36503_funny_those-who-do-not-understand-unix-are-con_2943883.png)

> “Those who do not understand Unix are condemned to reinvent it, poorly.”

[Henry Spencer](https://sms4smile.com/quotes/author/henry-spencer/)

## About This Quote

This interpretation was drafted with AI assistance. It is one reading of the quote, not the author's own explanation.

Lack of Unix knowledge leads to inefficient reinvention, producing poor solutions.

**In simple terms:** Not knowing Unix causes bad copies.

Key Takeaway

Learn Unix to avoid reinventing poorly.

Themes

technology efficiency learning

Mood

educational technical

Type

practical inspirational

When to use this quote

- system architecture
- coding practices
- team onboarding

Key Concepts

software design open source

Questions to Reflect On

- What core concepts of Unix are essential?
- How can you teach Unix efficiently?

A Different Perspective

Learning Unix may be time‑consuming.

★ ★ ★ ★ ★   No ratings yet

[Condemned Reinvent](https://sms4smile.com/quotes/about/condemned-reinvent-3031327/) [Funny](https://sms4smile.com/quotes/about/funny/) [Inspirational](https://sms4smile.com/quotes/about/inspirational/) [Love](https://sms4smile.com/quotes/about/love/) [Reinvent Poorly](https://sms4smile.com/quotes/about/reinvent-poorly-4402624/) [Technology](https://sms4smile.com/quotes/about/technology/) [Understand Unix](https://sms4smile.com/quotes/about/understand-unix-4402623/) [Unix](https://sms4smile.com/quotes/about/unix/) [Unix Condemned](https://sms4smile.com/quotes/about/unix-condemned-4402622/)

## Related quotes

> [Those who ignore Statistics are condemned to reinvent it.](https://sms4smile.com/quotes/bradley-efron/those-who-ignore-statistics-are-condemned-to-reinvent-it/)

[Bradley Efron](https://sms4smile.com/quotes/author/bradley-efron/)

> [Those who cannot remember the pastare condemned to repeat it. or: Those who have never heard of good system development practice are condemned to…](https://sms4smile.com/quotes/george-santayana/those-who-cannot-remember-the-pastare-condemned-to-repeat-it-or-those/)

[George Santayana](https://sms4smile.com/quotes/author/george-santayana/)

> [Huh? Windows was designed to keep the idiots away from Unix so we could hack in peace. Let's not break that.](https://sms4smile.com/quotes/tom-christiansen/huh-windows-was-designed-to-keep-the-idiots-away-from-unix-so-we/)

[Tom Christiansen](https://sms4smile.com/quotes/author/tom-christiansen/)

> [I came of technical age with UNIX, where I learned with power-greedy pleasure that you could kill a system right out from under yourself…](https://sms4smile.com/quotes/ellen-ullman/i-came-of-technical-age-with-unix-where-i-learned-with-power-greedy/)

[Ellen Ullman](https://sms4smile.com/quotes/author/ellen-ullman/)

> [“The history of Unix should have prepared us for what we’re learning from Linux (and what I’ve verified experimentally on a smaller scale by…](https://sms4smile.com/quotes/eric-s-raymond/the-history-of-unix-should-have-prepared-us-for-what-we-re-learning/)

[Eric S. Raymond](https://sms4smile.com/quotes/author/eric-s-raymond/)

> [Obviously, the person who had most influence on my career was Ken Thompson. Unix was basically his, likewise C's predecessor, likewise much of the…](https://sms4smile.com/quotes/dennis-ritchie/obviously-the-person-who-had-most-influence-on-my-career-was-ken/)

[Dennis Ritchie](https://sms4smile.com/quotes/author/dennis-ritchie/)

> [The mass culture of childhood right now is astonishingly technical. Little kids know their Unix path punctuation so they can get around the Web,…](https://sms4smile.com/quotes/jaron-lanier/the-mass-culture-of-childhood-right-now-is-astonishingly-technical/)

[Jaron Lanier](https://sms4smile.com/quotes/author/jaron-lanier/)

> [“VI was predecessor to hundreds of word processing systems. By now, Unix folks see it as a bit stodgy—it hasn’t the versatility of Gnu-Emacs,…](https://sms4smile.com/quotes/clifford-stoll/vi-was-predecessor-to-hundreds-of-word-processing-systems-by-now-unix/)

[Clifford Stoll](https://sms4smile.com/quotes/author/clifford-stoll/)

> [Obviously Linux owes its heritage to UNIX, but not its code. We would not, nor will not, make such a claim.](https://sms4smile.com/quotes/darl-mcbride/obviously-linux-owes-its-heritage-to-unix-but-not-its-code-we-would/)

[Darl McBride](https://sms4smile.com/quotes/author/darl-mcbride/)

> [“There are two major products that come out of Berkeley: LSD and UNIX. We don’t believe this to be a coincidence.”](https://sms4smile.com/quotes/jeremy-s-anderson/there-are-two-major-products-that-come-out-of-berkeley-lsd-and-unix/)

[Jeremy S. Anderson](https://sms4smile.com/quotes/author/jeremy-s-anderson/)

> [In my experience, telling someone to switch Unix shells for ease of use is like telling him to switch cigarette brands for his health.](https://sms4smile.com/quotes/chris-espinosa/in-my-experience-telling-someone-to-switch-unix-shells-for-ease-of/)

[Chris Espinosa](https://sms4smile.com/quotes/author/chris-espinosa/)

> [Unix is a junk OS designed by a committee of PhDs.](https://sms4smile.com/quotes/dave-cutler/unix-is-a-junk-os-designed-by-a-committee-of-phds/)

[Dave Cutler](https://sms4smile.com/quotes/author/dave-cutler/)

> [Unix gives you just enough rope to hang yourself - and then a couple of more feet, just to be sure.](https://sms4smile.com/quotes/eric-allman/unix-gives-you-just-enough-rope-to-hang-yourself-and-then-a-couple-of/)

[Eric Allman](https://sms4smile.com/quotes/author/eric-allman/)

> [Unix is back in vogue.](https://sms4smile.com/quotes/murphy-j-foster-jr/unix-is-back-in-vogue/)

[Murphy J. Foster, Jr](https://sms4smile.com/quotes/author/murphy-j-foster-jr/)

> [What I actually admire in Perl is its ability to provide a very successful abstraction of the horrible mess that is collectively called Unix.](https://sms4smile.com/quotes/erik-naggum/what-i-actually-admire-in-perl-is-its-ability-to-provide-a-very/)

[Erik Naggum](https://sms4smile.com/quotes/author/erik-naggum/)

## More by Henry Spencer

> [Programming graphics in X is like finding the square root of PI using Roman numerals.](https://sms4smile.com/quotes/henry-spencer/programming-graphics-in-x-is-like-finding-the-square-root-of-pi-using/)

[Henry Spencer](https://sms4smile.com/quotes/author/henry-spencer/)

> [If I must be ruled by larcenous bullies, I much prefer that they be located far away. Local bullies know far more about me…](https://sms4smile.com/quotes/henry-spencer/if-i-must-be-ruled-by-larcenous-bullies-i-much-prefer-that-they-be/)

[Henry Spencer](https://sms4smile.com/quotes/author/henry-spencer/)

> [Altruism is a fine motive, but if you want results, greed works much better.](https://sms4smile.com/quotes/henry-spencer/altruism-is-a-fine-motive-but-if-you-want-results-greed-works-much/)

[Henry Spencer](https://sms4smile.com/quotes/author/henry-spencer/)

> [“Indeed, "brute force" solutions are often characteristic of advanced cultures, not primitive ones. The Romans and their predecessors spent a long time figuring out…](https://sms4smile.com/quotes/henry-spencer/indeed-brute-force-solutions-are-often-characteristic-of-advanced/)

[Henry Spencer](https://sms4smile.com/quotes/author/henry-spencer/)

> [“8th Commandment: "Thou shalt make thy program's purpose and structure clear to thy fellow man by using the One True Brace Style, even if…](https://sms4smile.com/quotes/henry-spencer/8th-commandment-thou-shalt-make-thy-program-s-purpose-and-structure/)

[Henry Spencer](https://sms4smile.com/quotes/author/henry-spencer/)

> [A bit of tolerance is worth a megabyte of flamming.](https://sms4smile.com/quotes/henry-spencer/a-bit-of-tolerance-is-worth-a-megabyte-of-flamming/)

[Henry Spencer](https://sms4smile.com/quotes/author/henry-spencer/)

> [If you lie to the compiler, it will get its revenge.](https://sms4smile.com/quotes/henry-spencer/if-you-lie-to-the-compiler-it-will-get-its-revenge/)

[Henry Spencer](https://sms4smile.com/quotes/author/henry-spencer/)

> [C++ is the best example of second-system effect since OS/360.](https://sms4smile.com/quotes/henry-spencer/c-is-the-best-example-of-second-system-effect-since-os-360/)

[Henry Spencer](https://sms4smile.com/quotes/author/henry-spencer/)

> [Politics /n/: from 'poly ticks', short for 'many small bloodsucking insects'.](https://sms4smile.com/quotes/henry-spencer/politics-n-from-poly-ticks-short-for-many-small-bloodsucking-insects/)

[Henry Spencer](https://sms4smile.com/quotes/author/henry-spencer/)

> [To err is human, but to really screw things up requires a design committee of bureaucrats.](https://sms4smile.com/quotes/henry-spencer/to-err-is-human-but-to-really-screw-things-up-requires-a-design/)

[Henry Spencer](https://sms4smile.com/quotes/author/henry-spencer/)

> [MS-DOS isn't dead, it just smells that way.](https://sms4smile.com/quotes/henry-spencer/ms-dos-isn-t-dead-it-just-smells-that-way/)

[Henry Spencer](https://sms4smile.com/quotes/author/henry-spencer/)

> [Belief is no substitute for arithmetic.](https://sms4smile.com/quotes/henry-spencer/belief-is-no-substitute-for-arithmetic/)

[Henry Spencer](https://sms4smile.com/quotes/author/henry-spencer/)

[Explore all 13 Henry Spencer quotes ](https://sms4smile.com/quotes/author/henry-spencer/)

## More Funny quotes

> [You cant be controlling in improv.](https://sms4smile.com/quotes/matt-walsh/you-cant-be-controlling-in-improv/)

[Matt Walsh](https://sms4smile.com/quotes/author/matt-walsh/)

> [When you step out and do a song in a musical, the easier thing to do is make it funny. But when those transitions…](https://sms4smile.com/quotes/kelli-o-hara/when-you-step-out-and-do-a-song-in-a-musical-the-easier-thing-to-do/)

[Kelli O'Hara](https://sms4smile.com/quotes/author/kelli-o-hara/)

> [Joking about violence is not funny.](https://sms4smile.com/quotes/perez-hilton/joking-about-violence-is-not-funny/)

[Perez Hilton](https://sms4smile.com/quotes/author/perez-hilton/)

> [It's a hard thing to describe. It's just this sense that you got something to say.](https://sms4smile.com/quotes/jonah-lehrer/it-s-a-hard-thing-to-describe-it-s-just-this-sense-that-you-got/)

[Jonah Lehrer](https://sms4smile.com/quotes/author/jonah-lehrer/)

> [God reveals Himself through surprises.](https://sms4smile.com/quotes/pope-francis/god-reveals-himself-through-surprises/)

[Pope Francis](https://sms4smile.com/quotes/author/pope-francis/)

> [Sometimes I look at my awesome twitter followers &amp; think to myself, What the hell would I do without them :)](https://sms4smile.com/quotes/nikhil-saluja/sometimes-i-look-at-my-awesome-twitter-followers-think-to-myself-what/)

[Nikhil Saluja](https://sms4smile.com/quotes/author/nikhil-saluja/)

> [The happy have whole days,](https://sms4smile.com/quotes/colley-cibber/the-happy-have-whole-days/)

[Colley Cibber](https://sms4smile.com/quotes/author/colley-cibber/)

> [Congratulations to Facebook on going public with all my private information...](https://sms4smile.com/quotes/anonymous/congratulations-to-facebook-on-going-public-with-all-my-private/)

[Anonymous](https://sms4smile.com/quotes/author/anonymous/)

> [Why are things as they are and not otherwise?](https://sms4smile.com/quotes/johannes-kepler/why-are-things-as-they-are-and-not-otherwise/)

[Johannes Kepler](https://sms4smile.com/quotes/author/johannes-kepler/)

> [I've been funny my whole life. This is a gift God gave me.](https://sms4smile.com/quotes/tracy-morgan/i-ve-been-funny-my-whole-life-this-is-a-gift-god-gave-me/)

[Tracy Morgan](https://sms4smile.com/quotes/author/tracy-morgan/)

> [Penis goes in , sperms cums out.](https://sms4smile.com/quotes/nikhil-saluja/penis-goes-in-sperms-cums-out/)

[Nikhil Saluja](https://sms4smile.com/quotes/author/nikhil-saluja/)

> [If you were to send a werewolf to the moon, would he be a werewolf permanently?](https://sms4smile.com/quotes/kristen-schaal/if-you-were-to-send-a-werewolf-to-the-moon-would-he-be-a-werewolf/)

[Kristen Schaal](https://sms4smile.com/quotes/author/kristen-schaal/)

> [When you have a choice, choose happy!](https://sms4smile.com/quotes/pancho-barnes/when-you-have-a-choice-choose-happy/)

[Pancho Barnes](https://sms4smile.com/quotes/author/pancho-barnes/)

> [If you can connect people, you can create the future.](https://sms4smile.com/quotes/scott-heiferman/if-you-can-connect-people-you-can-create-the-future/)

[Scott Heiferman](https://sms4smile.com/quotes/author/scott-heiferman/)

> [Don't think OF the market. Think AS the market.](https://sms4smile.com/quotes/michael-fishman/don-t-think-of-the-market-think-as-the-market/)

[Michael Fishman](https://sms4smile.com/quotes/author/michael-fishman/)

[Browse all 39,858 Funny quotes ](https://sms4smile.com/quotes/about/funny/)

```json
{
    "@context": "https://schema.org",
    "@graph": [
        {
            "@type": "Quotation",
            "text": "Those who do not understand Unix are condemned to reinvent it, poorly.",
            "creator": {
                "@type": "Person",
                "name": "Henry Spencer"
            },
            "isPartOf": {
                "@id": "https://sms4smile.com/quotes/#website"
            },
            "url": "https://sms4smile.com/quotes/henry-spencer/those-who-do-not-understand-unix-are-condemned-to-reinvent-it-poorly/",
            "about": {
                "@type": "Thing",
                "name": "Funny"
            },
            "@id": "https://sms4smile.com/quotes/henry-spencer/those-who-do-not-understand-unix-are-condemned-to-reinvent-it-poorly/#quotation",
            "image": {
                "@type": "ImageObject",
                "@id": "https://sms4smile.com/quotes/i/3de/henry-spencer-36503_funny_those-who-do-not-understand-unix-are-con_2943883.png",
                "contentUrl": "https://sms4smile.com/quotes/i/3de/henry-spencer-36503_funny_those-who-do-not-understand-unix-are-con_2943883.png",
                "url": "https://sms4smile.com/quotes/i/3de/henry-spencer-36503_funny_those-who-do-not-understand-unix-are-con_2943883.png",
                "width": 1080,
                "height": 1080,
                "caption": "“Those who do not understand Unix are condemned to reinvent it, poorly.” — Henry Spencer",
                "creditText": "SMS4Smile Quotes",
                "creator": {
                    "@id": "https://sms4smile.com/quotes/#organization"
                }
            }
        },
        {
            "@type": "BreadcrumbList",
            "itemListElement": [
                {
                    "@type": "ListItem",
                    "position": 1,
                    "name": "Home",
                    "item": "https://sms4smile.com/"
                },
                {
                    "@type": "ListItem",
                    "position": 2,
                    "name": "Quotes",
                    "item": "https://sms4smile.com/quotes/"
                },
                {
                    "@type": "ListItem",
                    "position": 3,
                    "name": "Henry Spencer",
                    "item": "https://sms4smile.com/quotes/author/henry-spencer/"
                },
                {
                    "@type": "ListItem",
                    "position": 4,
                    "name": "Those who do not understand Unix...",
                    "item": "https://sms4smile.com/quotes/henry-spencer/those-who-do-not-understand-unix-are-condemned-to-reinvent-it-poorly/"
                }
            ],
            "@id": "https://sms4smile.com/quotes/henry-spencer/those-who-do-not-understand-unix-are-condemned-to-reinvent-it-poorly/#breadcrumb"
        },
        {
            "@type": "WebSite",
            "@id": "https://sms4smile.com/quotes/#website",
            "name": "SMS4Smile Quotes",
            "url": "https://sms4smile.com/quotes/",
            "publisher": {
                "@id": "https://sms4smile.com/quotes/#organization"
            }
        },
        {
            "@type": "Organization",
            "@id": "https://sms4smile.com/quotes/#organization",
            "name": "SMS4Smile Quotes",
            "url": "https://sms4smile.com/quotes/",
            "logo": {
                "@type": "ImageObject",
                "url": "https://sms4smile.com/quotes/wp-content/themes/sq/assets/icons/icon-512.png",
                "width": 512,
                "height": 512
            }
        }
    ]
}
```
