How to shut down a program ?

[erondem]

Hi,

In my raspberry, there is a program running at startup and when I try to kill with command

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sudo kill -9 PIDNUMBER

the program just restarts itself again. Program has written before but not by me.
I looked for methods to start a program at boot and check them but none of them helped me. (https://www.dexterindustries.com/howto/ ... t-startup/)

So it is a reverse engineering question. If a C program restarts itself after sudo kill command where should I look to disable it?

[RaTTuS]

depends on the program ,
but if this is started via systemd look at the service file as it may have options set for restart

what is this program ,
where has it come from
why do you want to stop it

[topguy]

Could have been helpful to know the name of the program.

If the program is installed as a "service" then the "systemd" is responsible of restarting the service if it stops for any reason.

To list all the services registered use the command "systemctl".
To correctly stop a service use "systemctl stop name".
To disable it completely use "systemctl disable name".

[erondem]

depends on the program ,
but if this is started via systemd look at the service file as it may have options set for restart

what is this program ,
where has it come from
why do you want to stop it

It is a C program which sends sensor data to a server. I made some changes, since I couldnt shut the first version I can not test properly.
It is under /usr/ folder.

What should I search in the systemd folder?

Edit:

Could have been helpful to know the name of the program.

If the program is installed as a "service" then the "systemd" is responsible of restarting the service if it stops for any reason.

To list all the services registered use the command "systemctl".
To correctly stop a service use "systemctl stop name".
To disable it completely use "systemctl disable name".

Thanks for helpful comment. I couldn't find the name of my program in the list when I enter systemctl

[topguy]

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rgrep "name" /etc/systemd

This would be a quick way to see if there are any installed services for the program.

[erondem]

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rgrep "name" /etc/systemd

This would be a quick way to see if there are any installed services for the program.

Can this somehow be related with "avahi"? When I entered ps -eaf I see there :

avahi-daemon: running [NAMEOFMYPROGRAM.local]

[DirkS]

avahi-daemon: running [NAMEOFMYPROGRAM.local]

Don't think so. That's most likely

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avahi-daemon: running [NAMEOFYOURASPBERRYPI.local]

[DirkS]

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rgrep "name" /etc/systemd

This would be a quick way to see if there are any installed services for the program.

You would also have to check /lib/systemd

And you can also use <TAB> completion; it works with all the systemctl commands.
'systemctl status ' + <TAB> will show all 350+ or so services.