Hi Monks, I am new to perl, so my question can be stupid question. I have file like this: 1 3 5 2 7 6 3 10 7 I want to subtract 2nd column of each line from previous line's 2nd column. I want to have output like this: 1 3 5 2 4 6 3 3 4 Any help will be appreciated.

In reply to subtracting two lines in file by frank19

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