Great, this works.

If there is duplicate value for A1, like below Yellow, it reapts. we need i to print only once </>

__DATA__

A1 abc yellow

A1 abc yellow

A2 cde yellow

A1 abc blue

Output:

A1 abc yellow:yellow:blue ---only yellow:blue

A2 cde yellow

B1 xyz green

In reply to Re^2: join column 3 for unique values by hello_beginner
in thread join column 3 for unique values by hello_beginner

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