setsid & nohup?
April 09, 2004 01:44 PM
I recently "found" those commands and from reading their man-pages, it sounds like they could have some pretty good uses. Anyone know what they are generally used for? maybe got some nifty trick using them?
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1,099
April 09, 2004 04:06 PM
Basically, jsut keeping things running after you log out.
nothing special.
nothing special.
124
April 09, 2004 04:22 PM
As an example, you ssh into your computer, and want to start downloading a large file without having to keep the connection open. Run nohup wget url &, close your ssh connection, and it keeps downloading.
151
April 09, 2004 06:49 PM
A related question, lets say I''ve started a process and I want to log out without terminating the process. Is there a way to use nohup, or something similar, on an already running process?
Thanks.
Thanks.
Kevin.
124
April 10, 2004 10:20 AM
quote: Original post by Krumble
A related question, lets say I''ve started a process and I want to log out without terminating the process. Is there a way to use nohup, or something similar, on an already running process?
Not as far as I know. When you log out, any processes attached to that session get sent SIGHUP, which by default terminates them. nohup basically works by spawning a process and ignoring SIGHUP. So if you''ve started a program ''normally'', it''ll quit when you close your session.
If your process is something like wget, though, you could interrupt it, and then restart it inside of nohup with the right command-line arguments to resume what it was doing last.
April 10, 2004 10:24 AM
> A related question, lets say I''ve started a process and I want to log out without terminating the process. Is there a way to use nohup, or something similar, on an already running process?
If you''re using bash, you can "disown" a job. If something is running in the foreground, stop it with ctrl-z, continue it in the background with "bg", and then "disown". Once you''ve disowned a job you can end the shell without sending HUP to the job''s process.
If you''re using bash, you can "disown" a job. If something is running in the foreground, stop it with ctrl-z, continue it in the background with "bg", and then "disown". Once you''ve disowned a job you can end the shell without sending HUP to the job''s process.
360
April 10, 2004 01:21 PM
if you are using a remote login like SSH to work you can use ''screen''. one started you get, besides many virtual terminals on one terminal, the possibility to detach the screen session (using CTRL+A,D) and you can resume it later using ''screen -r''. otherwise nohup is your friend ^_^
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