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18
votes
4answers
4k views

How to get only the unique results without having to sort data?

$ 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 ...
10
votes
5answers
3k views

case-insensitive search of duplicate file-names

I there a way to find all files in a directory with duplicate filenames, regardless of the casing (upper-case and/or lower-case)?