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Dubs checking strategies for big data

Name: Anonymous 2017-10-15 3:06

Hello, I have a project in which we need to count how many dubs numbers there are in a massive list of numbers (trillions of numbers). How can I do this efficiently?

Name: Anonymous 2017-10-15 5:05


rev <file> | sort | uniq -c | rev


fuck your ```massive list'''

Name: Anonymous 2017-10-15 6:29

>>2
Where is the dubs checking?

Name: Anonymous 2017-10-15 18:41

>>3
up your ASS, buddy

Name: Anonymous 2017-10-15 20:38

>>4
suck my cock dude

Name: Anonymous 2017-10-27 7:09

>>3
use cut to get first 2 characters, then grep with extended regexp to remove the lines in which they aren't the same.

Name: Anonymous 2017-10-27 7:10

>>6
(this assumes that trips/quads/quints/etc. count as dubs; if they don't, you need to get first 3 characters and filter out lines in which they ARE the same)

Name: Anonymous 2017-10-28 3:26

Try using regex

Name: Anonymous 2017-10-28 16:24

/\d{2,}$/

Name: Anonymous 2017-10-28 17:48

Please

Name: Anonymous 2017-10-28 17:48

fuck

Name: Anonymous 2017-10-28 17:49

off!
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