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bash last child process id


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Cenšos atrast labāko/īsāko veidu kā atrast pēdējo child procesu linuxā. Ir zināms screen programmas procesa Id, kas savukārt tur procesu ar pāris child subprocesiem. 

 

Pašreiz vienīgais jēdzīgais, ko esmu izdomājis ir: 

#!/bin/bash

fpid=20951;

x=`ps h --ppid $fpid -o pid`
while [ "$x" != "" ]
do
	pid=$x;
	x=`ps h --ppid $x -o pid`
done

echo $pid

Varbūt kāds ir saskāries ar līdzīgu lietu un zina labāku risinājumu?

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