I am not being able to ps -p $pid
of some processes that are listed at htop...
One very well known that I can point out is nautilus
(so I think you can easly try it). There is a main process that ps
can see, but there are 2 child processes listed on htop
which pids bring nothing with ps
...
how can I make ps
see those child process? as some other commands like gcore
can interact with them...