Another possibility is that the "collect_stats" script sends most of it's output to STDERR.

To account for that, try: 

 system("collect_stats 20 11 > file1 2>&1");

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        If your eyes hurt after you drink coffee, you have to take the spoon out of the cup.
              -Norm Crosby

In reply to Re: Increasing the timeout of a system command in perl by NetWallah
in thread Increasing the timeout of a system command in perl by manojkumar89

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