The faster/easier way to do that is: 

{
  local *STDOUT;
  open STDOUT, '>/dev/null';
  # do stuff that may print out.
}

[download]
Note also that you're creating $mySTDOUT and $oldSTDOUT and not actually using them anywhere. $mySTDOUT is not the same thing as *mySTDOUT!

In reply to Re^2: Suppressing console output by Tanktalus
in thread Suppressing console output by loris

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