Process in background is stopped

Asked Oct 09 '22 at 07:54

Active Oct 09 '22 at 07:56

Viewed 9 times

I want to put a program in the background. I start it by executing ./IpLocations. Then I suspend it with Ctrl + Z. When I call bg the program is in the background but it's still in Stopped state.

The program resumes when I type fg.

mini@m:~: ./IpLocations 
## [CTRL+Z] ##
[1]+  Stopped                 ./IpLocations
mini@m:~$ jobs
[1]+  Stopped                 ./IpLocations
mini@m:~$ bg
[1]+ ./IpLocations &
mini@m:~$ jobs
[1]+  Stopped                 ./IpLocations

Why is the program stopped afte calling bg?

How to resume a program in the background?

edited Oct 09 '22 at 07:56

asked Oct 09 '22 at 07:54

user544458

Another one: What would stop a task from being run in the background? Also A Deep Dive into the SIGTTIN / SIGTTOU Terminal Access Control Mechanism in Linux (note: I cannot fully judge the quality and accurateness of this article). – Kamil Maciorowski Oct 09 '22 at 07:58
@KamilMaciorowski Thank you. https://unix.stackexchange.com/q/152515/108618 was very helpful. In conclusion I have to add >/dev/null when running the program. ./IpLocations > /dev/null – user544458 Oct 09 '22 at 08:03

Process in background is stopped

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