UNIX for Dummies Questions & Answers

Hi, I'm wondering if it's possible to pause a process I'm running in the background, close my laptop (I need to leave the office), and continue the process (when I get home).

I've been running a process for a really long time and I don't want to have to start it over.

Thanks in advance!

For that you have to use a unix command .
It will run a job even when the system is hung.

Sorry, I'm really inexperienced.

Is that the exact syntax for it? Also, is it possible to just pause the process and then continue it? I'm not sure I have enough battery life for the process to continue running unplugged.

Code:

nohup filename

If you want run the same process in the background. Simply you can use this..

Code:

nohup filename &

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To stop a process simply you can use Cntrl+z. Then the process will be stopped. In order to restart the process you have to use or fg- to run the process in the foreground
bg- to run the job in the background.

If it is interctive, the susp key as shown on stty -a, usually ctrl-Z, takes the job to stoppped. I have not LINUX laptop experience, but I suppose it can sleep or hibernate until you go home and plug it back in, typing fg to get it running again or bg to resume it in the background.

If you launch it with "nohup . . . &", you can log out, but you still need to keep the machine running, and commutes and batteries vary. You can stop that pid with an appropriate kill command option (SIGSTOP?) but I am not sure how you would start it again . . . .

For example You are running a process (or) job,

Code:

sleep 50

Now the process is running in the foreground. If you want to stop the process press Control+z..
Then the process will be stopped.

In order to restart the stopped process use this command

Code:

fg jobId

It will run the process again in the foreground.
similarly

Code:

bg jobId

It will run the process again in the background.

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To get the Job Id and Process Id

Code:

jobs -l

or

Code:

ps

Just to make sure, the job will be held when I close my laptop right? I just don't want it to "forget" it and then have to start all over.