Dear monk I need again some assistance.
Following line works fine:
exec($musclepath, "-in $inpath -out $outpath -stable") == 0 or die $?;
But if I use "system" insted of "exec" I am told that my imputline is not correct and I see no "-" in front of the "in". Why is it so? I am in need of "system" because it is a loop and needs to return and work again. Thank you very much.

In reply to system does not work but exec. why? by Anonymous Monk

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