Just adding to the above problem..Suppose in the same code I have to add instead of deleting the strings matched.. Like strings that are in A but not in B and I want to add them using some string like "This is new addition" before adding those strings to file B and writing out in C.

In reply to Re^2: Search and delete lines based on string matching by brut
in thread Search and delete lines based on string matching by Anonymous Monk

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