Each process is owned by a user and a user group defined in /etc/passwd ad /etc/group respectively. Each process also belongs to one process group. The child process will belong to the same process group as the parent. All commands in a pipeline belongs to the same process group.
The process group is just a construct to make it easier to send signal or get information from a group of related processes. A process group is related to a job from user's perspective.
No comments:
Post a Comment