program to fetch pid of a running process

smitha kulkarni · 03-05-2010, 01:08 AM

hi guys. i want to access the process control block to retrieve a process' pid and priority. please help me out with the code or the steps to do it.

Aquarius_Girl · 03-05-2010, 01:23 AM

Quote:

Originally Posted by smitha kulkarni

hi guys. i want to access the process control block to retrieve a process' pid and priority. pls pls help me out with the code or the steps to do it.

getpid() can be used to retrieve a process's PID, do man getpid on your terminal.

For process priority, look here:
http://www.cyberciti.biz/faq/howto-s...ority-process/
and
http://linux.die.net/man/2/nice
and
http://www.comptechdoc.org/os/linux/...processes.html

and finally do not use words like 'pls' on a technical forum, people find them irritating. You can try writing 'please' instead.

smitha kulkarni · 03-05-2010, 03:30 AM

hi
we have a program which is running in an infinite while loop. how to fetch the pid of this process.

thanks.

evo2 · 03-05-2010, 03:33 AM

With the ps command.

Evo2.

smitha kulkarni · 03-05-2010, 03:38 AM

Is there any other way of doing it?? Like a program code to retrieve the pid?

Aquarius_Girl · 03-05-2010, 03:39 AM

Try ps -el and lookout pstree for detailed info.

Aquarius_Girl · 03-05-2010, 03:40 AM

Quote:

Is there any other way of doing it?? Like a program code to retrieve the pid?

I have answered you in this thread:

http://www.linuxquestions.org/questi...block.-793336/

bathory · 03-05-2010, 03:45 AM

There is also

Code:

pidof <process-name>

z-vet · 03-05-2010, 07:58 AM

+1 for pidof.

GrapefruiTgirl · 03-05-2010, 12:51 PM

smitha kulkarni,

I have merged your two nearly identical threads since they each had had some replies on them.

Please try to keep questions specific and post them in one place only, rather than posting the same question two different ways in two different places.

Kind regards,
Sasha