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PID

cbwery2
Deleted

Sep 18, 2000, 5:34 AM

Post #1 of 3 (819 views)

PID	Can't Post

hi,

Is there a way to know the PID of a
son process.

I run a small perl program, where I have
to lunch a program made in C.

After a while I have to kill the
process and start it again.

So I need to find the PID. I know I can
find a Parent PID from a process (getppid)
but I need "the Son PID"

thanks any help.

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gekofish
Deleted

Sep 18, 2000, 7:13 PM

Post #2 of 3 (819 views)

Re: PID [In reply to]	Can't Post

Actually you can call "ps" in your code to list the PIDs of sons of your parent PID and then retrieve that using grep etc.

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If you ever need a custom perl/java script or a java applet done for you, please drop me a line to get a quote

Kanji
User / Moderator

Sep 18, 2000, 8:46 PM

Post #3 of 3 (819 views)

Re: PID [In reply to]	Can't Post

Depends how you invoke the child. If you're using fork() it's nice and easy ...
<BLOCKQUOTE><font size="1" face="Arial,Helvetica,sans serif">code:</font><HR>

if ( $cpid = fork ) {
print "I'm the parent. My pid is $$, and my child is $cpid";
} else {
print "I'm the child. My pid is $$, and my parent is ", getppid;
}</pre><HR></BLOCKQUOTE>

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