Re^2: How do I Extract contents from given input files and merge into one text file based on Unique keys present in input files

[dwm042]

lnin,

bart above really does have the answer to this question. You can't easily read data and then immediately write data any way you please. To write the data column-wise or anyway-wise, it's best to:

• read all the data and store it.
• write the data out in the format you want.

Given that you are wanting to write out the data in terms of iterations and line numbers, the data can be stored in an array (as pairs of numbers, for example). The index to the array can be the number of the iteration.