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  1. or download this
    use strict;
use warnings;

...
   }
   
}
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    Sent message "Hello Child!" to child
In child
Hello Child!
...
Sent message "Hello Child!" to child
Sent message "Hello Child!" to child
xyz@v32470:~/projekte/$
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    In child
Hello Child!
...


In child
  4. or download this
    xyz@v32470:~$ kill 1 31055
-bash: kill: (1) - Operation not permitted