$BASHPID And $$ differ in some cases
I’m reading “BASH pocket guide of Oreilly”.
It said:
process
Why do multiple instances of Mate-terminal have the same PID?
I’ve noticed, that all mate-terminal instances I start, be it inside a mate-terminal or via a link button, have the same PID.
Orphan process’s parent id is not 1 when parent process executed from GNOME Terminal
I start a new process from GNOME Terminal and then this process fork a child.
But when I killed the parent process the orphaned process’s parent id became something other than 1 which represent init --user pid.
When I do this in virtual terminals, the parent pid is 1 which represent init process.
How can I execute new process from GNOME Terminal so that when it is died, the child process’s parent pid became 1 and not pid of init --user process?
Thanks a lot.
Does a user have to log in to run a process and become its owner?
In general, does a user have to log in to run a process and become its owner (ruid, or euid)? Does this apply to any user or any non-root user?
For example:
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recently I had to clean up a hacked server. The malicious process would appear as “who” or “ifconfig eth0” or something like that in “ps aux” output, even tough the executable was just a jumble of letters, which was shown in /proc/[pid]/status .
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Need explanation on Resident Set Size/Virtual Size
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