getpgid
Process.getpgid( anInteger ) -> anInteger
Returns the process group id for the given process id. Not available on all platforms.
Process.getpgid(Process.ppid()) » 32438

getpgrp
Process.getpgrp -> anInteger
Returns the process group id for this process. Not available on all platforms.
Process.getpgid(0) » 32438
Process.getpgrp » 32438

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