USING UNIQUE COMMAND ON SOME COLUMNS
file1 ----- 1 2 3 4 1 2 3 4 1 2 3 3 9 9 9 3 ## ignore first three columns $ uniq file1 -f 3 1 2 3 4 1 2 3 3
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file1 ----- 1 2 3 4 1 2 3 4 1 2 3 3 9 9 9 3 ## ignore first three columns $ uniq file1 -f 3 1 2 3 4 1 2 3 3
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