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Sort and count number of occurrence of lines uniq options: -c, --count prefix lines by the number of occurrences sort options: -n, --numeric-sort compare according to string numerical value -r, --reverse reverse the result of comparisons In the particular case were the lines you are sorting are numbers, you need use sort -gr instead of sort -nr, see comment
How to get only the unique results without having to sort data? 62 $ 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 all the lines from the original file removing all the duplicates (not just the consecutive ones), while maintaining the original order of
How to print only the duplicate values from a text file? You can use uniq(1) for this if the file is sorted: uniq -d file txt If the file is not sorted, run it through sort(1) first: sort file txt | uniq -d This will print out the duplicates only Technically the input does not need to be in sorted order, but the duplicates in the file need to be consecutive The usual way to achieve that is to sort the file
Why doesnt uniq --unique remove all duplicate lines? uniq requires the input to be sorted (from man uniq) if you want it to remove all duplicate lines: DESCRIPTION Filter adjacent matching lines from INPUT (or standard input), writing to OUTPUT (or standard output) As you can see above, it only filters adjacent matching lines This is why the lol s were removed So sort your data before passing
Difference between cat file. txt | sort -u and cat file. txt | uniq 5 Strictly speaking, uniq doesn't need sorted input - but it is true that uniq will only remove consecutive duplicate lines The difference is that: sort sorts a file and (using its -u option) can also eliminate duplicate lines, which will now all be consecutive as they have been sorted uniq deletes consecutive duplicate lines
uniq - finding all non-unique lines in a file - Unix Linux Stack Exchange 2 I'm trying to use uniq to find all non-unique lines in a file By non-unique, I mean any line that I have already seen on the previous line I thought that the "-D" option would do this: -D print all duplicate lines But instead of just printing the duplicate lines, it prints all the lines when there is more than one
Difference between using `sort -u` and `sort | uniq -u` The title and the body ask two different questions sort | uniq is the same as sort -u, and sort | uniq -u is explicitly asking for a totally different behaviour; which one do you care about?
Selecting unique values in a particular column I tried using the following: awk '{print $1}' your_file | sort | uniq However, the output does not turn out as expected Here are examples of what values in the column I am interested in looks lik