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  • Thanks man! :D manually calling $out->flush(); and the output reaches the journal as expected :D Commented Dec 22, 2016 at 15:52
  • Anyways I indeed asked myself why I'm using perl here anyways^^... well the thing is that I use it to avoid high-level bashscripting. Is it recommended to use Python instead here? In the process of this Problem I thought about it several times. But due to my lacking knowledge about perl buffering, I did not think for real that the perl script was the Problem. Commented Dec 22, 2016 at 16:01