March 2002
Beginner
504 pages
10h 47m
English
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Listing and Terminating Processes
You can start processes in the foreground and background, suspend them, and move them between the foreground and background, but how do you know which commands are running? There are two commands to help you find out—jobs and ps.
jobs
The jobs command shows you the processes that are suspended and the ones running in the background. Because jobs runs as a foreground process, it cannot show you active foreground processes. In the following example, you have three jobs—the first one (job 3) is running, the second (job 2) is suspended (a foreground process after Ctrl+Z was issued), and the third one (job 1) is stopped in the background waiting for keyboard input:
$ jobs [3] + Running first_one & [2] - Stopped (SIGTSTP) ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.