Bash script background execution "the input device is not a TTY"

Question

I'm getting the input device is not a TTY errors while the below command is being run in the background of my bash script. I saw a similar issue for docker, yet there is no single post for bash scripts. Is there any other option for running commands in the background other than using &?

echo "Starting the simulation server ..."

cd simulator-server && ./simServer-VegasMixed.sh &

In interactive use of bash you can run your script, then Ctrl+Z and type bg to put the job to the background. Once you want to get it to the foreground again, use fg. I'm not sure whether your question includes interactive use case, though. — Michael Kopp
– Michael Kopp, Commented Jan 27, 2022 at 21:22
Thanks, Mic, yes indeed my question includes interactive execution. The problem is, I'm using the script for automation installation which shall not require any user interaction . — Zekarias Taye Hirpo
– Zekarias Taye Hirpo, Commented Jan 27, 2022 at 21:24

Zekarias Taye Hirpo · Accepted Answer · 2022-01-28 10:25:10Z

1

I have finally figured it out! I used tmux to run my command in separate sessions.

tmux new -d './simServer-VegasMixed.sh'

This post has also helped me a lot in solving my problem.

answered Jan 28, 2022 at 10:25

Zekarias Taye Hirpo

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Diaa Mohamed Kasem Over a year ago

This actually helped me while creating a new workflow for Alfred in Mac OS X to open Okular using Docker That was the main command I mainly wanted to run from alfred.

docker run -it --rm -e DISPLAY=$mynetip:0 -v /tmp/.X11-unix:/tmp/.X11-unix -v "$HOME/Calibre Library/":"/home/neon" kdeneon/plasma okular

Luke Attard · Accepted Answer · 2022-01-28 11:07:26Z

0

daemon turns any process into a daemon depending on your script you can try that.

There is always the option of using systemd and creating a service. It really depends on what your script is.

Assuming you are running a linux distro (not BSD etc). Create a file /usr/local/lib/systemd/system/simServer-VegasMixed

[Unit]
Description=simServer VegasMixed


[Service]
Type=simple
ExecStart=/opt/simServer-VegasMixed/simServer-VegasMixed.sh

[Install]
WantedBy=multi-user.target
Alias=simServer.service

That will create a simple service that starts on boot, you can also control the service using

systemctl stop simServer systemctl start simServer systemctl status simServer

If you dont want the service to start on boot, then remove the WantedBy line.

If there is a server/service, then this would be the recommended way to have the service start.

edited Jan 28, 2022 at 11:07

answered Jan 27, 2022 at 21:32

Luke Attard

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2 Comments

Zekarias Taye Hirpo Over a year ago

Can you please answer the question specifically?

Luke Attard Over a year ago

Not without knowing more about the script, and how you want it to run. I am assuming it is a server for a sim, do you want it to start on boot? or manually? Do you want it to restart if it stops or notify you if it stops? Is there any output to the script? Any loggin?

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