There don't seem to be many comments in that code, or helpful things like "use warnings;". Try closing OUT before opening COL. What is OUTPUT? Are there perhaps some files whose last line is missing a newline character? Try chomping all your input and adding "\n" to each print.

In reply to Re^7: inserting array of data into text file by ysth
in thread inserting array of data into text file by Anonymous Monk

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