The Main Thing Is That It Works

Content 2 Answers Active Oldest Votes 541 Use shuf with the -n option as shown below, to get N random lines: shuf -n N input output share morove this answer allow edited Jun 16 16 at 20:48 DAmainSFAATTITed 1,234 1 18 29 answered Feb 25 '13 at 11:03 dogbane 226k 69 351 388 35 This should be the accepted answer. Wow, shuf is sooo fast. - picking 10000 random lines from a textile with 40000 lines is instant. Trying to use 'sort -R' took so long I just CTRL-C it - carpii Jul 3 '15 at 20:10 2 1 If you just need a random set of lines, not in a random order, then shuf is very inefficient (for big file): better is to do reservoir sampling, as in this answer. - petrelharp Sep 6 '15 at 23:24 neither shuf nor sort -R are available for mac OSX. any suggestions? - Tom Smith Oct 6 '15 at 10:06 33 TomSmith On Mac OSX, if you are using Homebrew, you can get shuf or GNU sort by installing coreutils . More info here: apple.stackexchange.comquestions142860install-shuf-on-os-x - nofinator Oct 8 '15 at 13:11 7 shuf is fantastic. I tried in on a 78 Billion line text file and it did the job in less than 1 minute. - Ash Jan 19 '16 at 8:13 7 shuf is fantastic. I tried in on a 78 Billion line text file and it did the job in less than 1 minute. - Ash Jan 19 16 at 8:13 1 78 Billion line text file The WHAT

Content When someone asks: "How can vou be a programmer without a computer science degree?" - Not to worry have a permit I can do what I want. Ron

The top panel shows multithreading chaos with threads printing out of order and overlapping each other—basically your brain running four processes simultaneously with zero synchronization primitives. The middle panel shows the dream: perfectly ordered thread execution. Like when you fantasize that medication will magically transform your brain into a beautiful sequential processor. But the brutal reality in the bottom panel? Your brain just kills three threads entirely. Sure, it's deterministic now... but at what cost? Single-threaded performance isn't exactly a feature upgrade when you're trying to parallel process life. And yeah, technically it's better than a race condition. At least you know exactly what's happening—absolutely nothing on those other threads.

The passive-aggressive Bugs Bunny perfectly encapsulates the C++ developer's nightmare. You spend hours configuring build systems only to hit the dreaded "documentation not found" error when you actually need help. It's like CMake is saying "I could tell you how to fix this, but where's the fun in that?" The best part of using CMake is telling everyone how much you hate using CMake.

Content Anonymous 020718(Wed)11:31:42 No.64636082 284 38 38 2254833384 228883835 228333 83 2254833408 2259833059 What is "compiling"? Anonymous 020718(Wed)11:37:43 No.64636144 M 259938 50 2254536538 225953555 2799936 a 75003 373 64638143 64638522 64639846 There's a very small man living in the CPU that reads your code, laughs at your terrible algorythm implementations, and translates everything by hand into 10101001110100101001010etc, so that no one else will be able to read your shitty code and you will be safe from the shame of being ridiculed by everyone Say thanks to the little CPU man. L Anonymous 020718(ed)11:38:58 No.64636152 64636144 Thanks little CPU man

Ah, the sacred developer initiation ritual! First comes the panic alert: "CODE RED: THE WEBSITE IS DOWN!!" Then the sheepish confession from the newbie who pushed straight to prod. The poor soul apologizes profusely, thinking they've committed the ultimate sin... only to discover it's basically a rite of passage. The veterans aren't mad—they're celebrating . "FINALLY! WELCOME TO THE CLUB!" Because no CI/CD pipeline, code review, or stern warning has ever stopped a determined developer from accidentally nuking production. It's not a matter of if, but when. The only difference between junior and senior devs? Seniors have a better poker face when it happens again.