In the following snippet: /xyz.txt 404 /abc.txt 506 /pqr.txt 404 /xyz.txt 404 /abc.txt 505 /abc.txt 406 /abc.txt 306 /xyz.txt 206 How to write a bash one liner so that the unique text files are counted? For the above snippet the result has to be like: 3 /xyz.txt 4 /abc.txt 1 /pqr.txt Can this scenario be tried in Perl one liner too?

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