> Is there another creative way to deal with the file's next line?

The sliding window concept is a generic way to solve such "n'th line before" , "x'th line after" requirements.

See Re^2: Grab 3 lines before and 2 after each regex hit (sliding window) and especially the code in the "update".

NB the window size in your example is just 2 then.

Cheers Rolf
(addicted to the Perl Programming Language :)
Wikisyntax for the Monastery

In reply to Re: Dealing with nextline of a file by LanX
in thread Dealing with nextline of a file by jnarayan81

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