“I used to [look at the Linux source code], for Plan 9. They were always ahead of us—they just had massively more resources to deal with hardware. So when we'd run across a piece of hardware, I'd look at the Linux drivers for it and write Plan 9 drivers for it. Now I have no reason to look at it. I run Linux. And I occasionally look at code, but rarely, so I can't really tell whether the quality has gotten better or not [since 1999]. But certainly the reliability has gotten better.”

— Ken Thompson

Ken Thompson; cited in [Seibel, Peter, Coders At Work, 2009, 479]
"Coders At Work", 2009

Adopted from Wikiquote. Last update June 3, 2021. History

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Ken Thompson 28

American computer scientist, creator of the Unix operating … 1943

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“I view Linux as something that's not Microsoft — a backlash against Microsoft, no more and no less. I don't think it will be very successful in the long run. I've looked at the source and there are pieces that are good and pieces that are not. A whole bunch of random people have contributed to this source, and the quality varies drastically. My experience and some of my friends' experience is that Linux is quite unreliable. Microsoft is really unreliable but Linux is worse. In a non-PC environment, it just won't hold up. If you're using it on a single box, that's one thing. But if you want to use Linux in firewalls, gateways, embedded systems, and so on, it has a long way to go.”

Ken Thompson (1943) American computer scientist, creator of the Unix operating system

"Unix and Beyond: An Interview with Ken Thompson," 1999

“Today, I use Linux as my primary OS (on an x86 PC, and on a Thinkpad), and I also use Irix (on an SGI O2). Linux has improved a great deal since I wrote this, specifically with respect to its ease of installation.”

Jamie Zawinski (1968) American programmer

In a comment http://www.jwz.org/doc/linux.html on his site in 2000

“People are always looking for the be-all-end-all super perfect Linux. It will never happen until Microsoft does Linux. Oops. Did I say that?”

John C. Dvorak (1952) US journalist and radio broadcaster

PC Magazine, "Inside Track", (26 June 2007), p. 1
2000s

“Programming in the abstract sense is what I really enjoy. I enjoy lots of different areas of it… I'm taking a great deal of enjoyment writing device drivers for Linux. I could also be having a good time writing a database manager or something because there are always interesting problems.”

John D. Carmack (1970) American computer programmer, engineer, and businessman

Quoted in Bob Colayco, "John Carmack Interview" http://www.firingsquad.com/features/carmack/page3.asp Firing Squad(2000-02-09)

“My own computational world is a strange blend of Plan 9, Windows, and Inferno. I very much admire Linux's growth and vigor. Occasionally, people ask me much the same question [about Linux], but posed in a way that seems to expect an answer that shows jealousy or irritation about Linux vs. Unix as delivered and branded by traditional companies. Not at all; I think of both as the continuation of ideas that were started by Ken and me and many others, many years ago.”

Dennis M. Ritchie (1941–2011) American computer scientist

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On Unix and Unix-like systems (1999)

“Releasing Linux versions has always been a matter of higher code quality, good software architecture, and technical interest for the platform.”

Timothee Besset French software programmer

Quoted in Maxim Bardin, "id Software and Linux – By TTimo" http://linuxgamingnews.org/2009/09/15/id-software-and-linux-by-ttimo/ Linux Gaming News (2009-09-15).

“I'd just like to interject for a moment. What you’re referring to as Linux, is in fact, GNU/Linux, or as I’ve recently taken to calling it, GNU plus Linux. Linux is not an operating system unto itself, but rather another free component of a fully functioning GNU system made useful by the GNU corelibs, shell utilities and vital system components comprising a full OS as defined by POSIX. Many computer users run a modified version of the GNU system every day, without realizing it. Through a peculiar turn of events, the version of GNU which is widely used today is often called “Linux”, and many of its users are not aware that it is basically the GNU system, developed by the GNU Project. There really is a Linux, and these people are using it, but it is just a part of the system they use. Linux is the kernel: the program in the system that allocates the machine’s resources to the other programs that you run. The kernel is an essential part of an operating system, but useless by itself; it can only function in the context of a complete operating system. Linux is normally used in combination with the GNU operating system: the whole system is basically GNU with Linux added, or GNU/Linux. All the so-called “Linux” distributions are really distributions of GNU/Linux.”

Richard Stallman (1953) American software freedom activist, short story writer and computer programmer, founder of the GNU project

Internet meme commonly attributed to Stallman made by an unknown source.
Misattributed

“… even if the Hurd didn't depend on Linux code (and as far as I know, it does, but since I think they have their design heads firmly up their *sses anyway with that whole microkernel thing, I've never felt it was worth my time even looking at their code), I don't believe a religiously motivated development community can ever generate as good code except by pure chance.”

Linus Torvalds (1969) Finnish-American software engineer and hacker

LKML, September 27, 2006 http://groups.google.com/group/fa.linux.kernel/msg/e4617294bbd1d0f1
2000s, 2006

“The desktop hasn't really taken over the world like Linux has in many other areas, but just looking at my own use, my desktop looks so much better than I ever could have imagined. Despite the fact that I'm known for sometimes not being very polite to some of the desktop UI people, because I want to get my work done. Pretty is not my primary thing. I actually am very happy with the Linux desktop, and I started the project for my own needs, and my needs are very much fulfilled. That's why, to me, it's not a failure. I would obviously love for Linux to take over that world too, but it turns out it's a really hard area to enter. I'm still working on it. It's been 25 years. I can do this for another 25. I'll wear them down.”

Linus Torvalds (1969) Finnish-American software engineer and hacker

Torvalds, Linus, 2016-04-07, <nowiki>Linus Torvalds still wants Linux to take over the desktop</nowiki>, 2016-04-07 http://www.cio.com/article/3053507/linux/linus-torvalds-still-wants-linux-to-take-over-the-desktop.html,
2010s, 2016

“Controlling a laser with Linux is crazy, but everyone in this room is crazy in his own way. So if you want to use Linux to control an industrial welding laser, I have no problem with your using PREEMPT_RT.”

Linus Torvalds (1969) Finnish-American software engineer and hacker

Kernel development, 2007, Torvalds, Linus http://lwn.net/Articles/396997/,.
2000s, 2007

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