Hi, I have a tab delimited columnar file where I want to remove lines wherever two particular columns match. so for this file, I want to toss the lines where columns 1 and 2 match:
a a 1 3
a b 2 4
b b 3 5
because there are matches column 1 and 2 in lines 1 and 3, I would like a script to provide the following output:
a b 2 4
Can this be done with a sed one liner? Can anyone help me with this?
THANKS!