Thank you for your replay Your code is well writing and concise :) This is what my code do, and the output that i wrote in the post is an error. I tested your code , it is also slow like my code, because it do exactly the same processing. What do you think if we stock the second file or both fiels in a hash of table

In reply to Re^2: compare two text file line by line, how to optimise by thespirit
in thread compare two text file line by line, how to optimise by thespirit

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