This one-liner removes duplicate lines from text input without pre-sorting. For example: $ cat >f q w e w r $ awk '!a[$0]++' <f q w e r $ The original code I have found on the internets ...
$ cat data.txt aaaaaa aaaaaa cccccc aaaaaa aaaaaa bbbbbb $ cat data.txt | uniq aaaaaa cccccc aaaaaa bbbbbb $ cat data.txt | sort | uniq aaaaaa bbbbbb cccccc $ The result that I need is to display ...
My question is similar to this question but with a couple of different constraints: I have a large \n delimited wordlist -- one word per line. Size of files range from 2GB to as large as 10GB. I ...
I have encountered a problem that exceeds my basic unix knowledge and would really appreciate some help. I have a large file in the following format: 2 1019 0 12 2 1019 3 0 2 1021 0 2 ...
Everywhere I see someone needing to get a sorted, unique list, they always pipe to sort | uniq. I've never seen any examples where someone uses sort -u instead. Why not? What's the difference, and why ...
Here are commands on a random file from pastebin: wget -qO - http://pastebin.com/0cSPs9LR | wc -l 350 wget -qO - http://pastebin.com/0cSPs9LR | sort -u | wc -l 287 wget -qO - ...
I there a way to find all files in a directory with duplicate filenames, regardless of the casing (upper-case and/or lower-case)?
I have large text file (1.5 G), I want to know what the fastest and more reliable tool in linux is. I usualy use: awk '!x[$0]++' file.txt But when I use htop command I see my memory usage is ...
So I'm fairly new to linux, and needed help figuring out how to find how many times a particular string shows up in column 4. This is my data: 25 48656721 48656734 FAM132B ENSCAFT00000019683 4 0.51 ...
I have no idea why the command sort filename.txt | uniq is not working on this file: http://packetstormsecurity.com/files/32089/koran.gz.html I have also used: awk '!seen[$0]++' koran.txt perl ...