Getting pid of exec'd process

Getting pid of exec'd process

[Prasanta Sadhukhan]

Hi,

Can anyone suggest as to how can I get the pid of the process which I 
have done execv()?
ie, if I do execv(path, cmd) a new process will be launched and now how 
can I get the pid of this new process?

Regard
Prasanta

RE: Getting pid of exec'd process

[cyon.john]

Hi,

If you are doing execv after creating a child process using fork, then
return value of fork will give you the pid of the process.

If you haven't done any fork, then the pid is same the calling process
(execv doesn't create any new process, it overwrites the process image
of calling one) and can be obtained using the getpid() system call.

Regards,
Cyon P.J.

-----Original Message-----
From: linux-c-programming-owner@vger.kernel.org
[mailto:linux-c-programming-owner@vger.kernel.org] On Behalf Of Prasanta
Sadhukhan
Sent: Thursday, March 22, 2007 4:42 PM
To: linux-c-programming@vger.kernel.org
Subject: Getting pid of exec'd process

Hi,

Can anyone suggest as to how can I get the pid of the process which I
have done execv()?
ie, if I do execv(path, cmd) a new process will be launched and now how
can I get the pid of this new process?

Regard
Prasanta

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Re: Getting pid of exec'd process

[Benoît Rouits]

hello Prasanta, maybe you can look at 
http://patatra.mine.nu/cash/cash.tar.gz

it contains a shell of 160 line of code that uses fork() and execvp()
maybe the source code can help you to learn.
Hope this helps.
+ Ben

Le jeudi 22 mars 2007 à 16:41 +0530, Prasanta Sadhukhan a écrit :
> Hi,
> 
> Can anyone suggest as to how can I get the pid of the process which I 
> have done execv()?
> ie, if I do execv(path, cmd) a new process will be launched and now how 
> can I get the pid of this new process?
> 
> Regard
> Prasanta
> 
> -
> To unsubscribe from this list: send the line "unsubscribe linux-c-programming" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
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