Possible Duplicate:
How can I remove duplicates in an array but keep the same order?
How I can delete duplicate row without sorting it?
data.txt newData.txt
1 1
5 5
3 3
3 8
8
8
I have tried to use the function UNIQUE but it sorted the data in ascending order.
I don't want it to be sorted. I just want to delete the repeating row and remain the original order of the data newData.txt