How to compare two text files

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hi,

I've got two text files containing email addresses one at a row. The
number of rows in one file is different from the number of the other
file. email addresses in one file is already there in the other file
(there are some more also). What I want to do is extract the list
which is not in the other file.

elaboration

File A has 100 email addresses and file B has 15 email addresses. 15
email addresses in file B are already there in file A. I want to
extract the 85 mails (excluding the 15 from file B) from file A.

Any idea on how to accomplish this?



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W.H.Kalpa Pathum
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