Machine Learning

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

Let's be honest - nobody's code is actually standing on object-oriented principles. The real four pillars holding up our janky solutions? Stack Overflow copy-paste jobs, those suspiciously detailed YouTube tutorials from Indian developers, ancient forum posts from the dawn of Web 2.0, and pure dumb luck. Without these sacred foundations, the entire software industry would collapse faster than a JavaScript framework's relevance.

Content Can't fail the unit test 0 If you don't write the unit test

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Ah, the beautiful irony of modern gaming! Kingdom Come: Deliverance 2 with its hyper-realistic medieval graphics only needs a modest GTX 1060 to run. Meanwhile, Borderlands 4 with its cartoony cell-shaded style demands an RTX 2070 minimum. It's like needing a supercomputer to run MS Paint while Photoshop runs on a calculator. Game engine optimization is clearly an arcane art that defies logic. The real medieval warfare isn't in the game—it's in your wallet fighting to afford unnecessary GPU upgrades for stylized graphics. Somewhere, a graphics programmer is cackling maniacally while writing the most inefficient shader code possible for those cartoon outlines.

Leave your PC unattended for 5 seconds and suddenly you've got a Cat Processing Unit with 9 lives of RAM. Runs great until it decides to chase the mouse cursor. Supports purr-allel processing but frequently causes unexpected kernel panics. Worst part? The fuzzy little heat sink keeps trying to sleep on the motherboard.