12-04-2011
list of all predecessors and successors for given PID
Dear experts,
I'm moving from SunOS to Linux.
Linux has no ptree, but it has pstree. Anyway, pstree doesn't show what ptree used to print with output nice to grep. My Linux distribution doesn't have proctree either.
This forum has few posts touching ptree/pstree topic, but I didn't find a nice solution for quick method getting list of all predecessors and successors for given PID.
The best I figured out for now is a two steps approach.
1: To get list of childs (and theirs childs), I use ‘ptree -Gap $$' command.
2: To get list of all predecessors, I use recursive approach using ps -p <PID> -o ppid looking for parent pid, until reaching 1.
I'm wondering if you know a simpler method.
Kind Regards
bzk
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