compare two lines and print unmatched words from two files

by user2132767   Last Updated July 12, 2019 23:02 PM

I have two files,Lets say file1 and file2

file1 has "a b c d" each one is space delimited
file2 has "b d" each one is space delimited

I wanted to print "a d" in file3. since all I am trying to do is non matching words from file1.

I have been trying with "awk", "for loop", "while loop" but unable to get to a solution. any idea of how to minus and get to only unmatched ones.

Thank you all.

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