in reply to Re^2: join column 3 values of unique values in column 1
in thread join column 3 for unique values

You still have not addressed my important question about field 2. Can we be certain that all input entries which have the same field 1 will have the same field 2? If not, how do you handle it? Report an error? Make separate output lines for each field 1/field 2 combination? Arbitrarily choose one of the field 2 values for the output?
Bill
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Re^4: join column 3 values of unique values in column 1
by Anonymous Monk on Sep 06, 2016 at 13:34 UTC

    yes, the column 2, 5,6 values will be same for unique col 1 values.

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