Do you really need to read the TSV file twice in order to process your data? For large TSV files it might be faster to read the file only once line-by-line and perform the two operations - currently distributed over two different while-loops - within the same loop.

On the other hand, if processing time doesn't matter and code keeps cleaner, seek might be the better option.

In reply to Re: Having Access to a file two times by Perlbotics
in thread Having Access to a file two times by sesemin

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