Answer / pramod

The various ID's for a process are
Process id, Process group id, Session id, Permissions to
execute i.e effective user id, real user id , real group id,
effective user id, effective group id,terminal id associated.
For more info I think man of ps will help.

Answer / guest

PID (Process Id) and PPID(Parent Process Id)

Answer / dhanashri

pid is a process id used by os to identify unique process
and is created as soon as process is created.we use ps,
getpid(),getppid() to know pid of process.

Answer / rerew

And also euid

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